FORM 10-Q
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


(Mark One)

[x]  Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange
     Act of 1934
     For the quarterly period ended

                               SEPTEMBER 30, 2001

[ ]  Transition report pursuant to Section 13 or 15(d) of the Securities
     Exchange Act of 1934
     For the transition period from __________ to __________

                         Commission File Number 0-14206

                            CABLE TV FUND 12-D, LTD.
                Exact name of registrant as specified in charter

          Colorado                                          # 84-1010423
- ------------------------------                     -----------------------------
   State of organization                               I.R.S. employer I.D. #

                             c/o Comcast Corporation
                 1500 Market Street, Philadelphia, PA 19102-2148
- --------------------------------------------------------------------------------
                      Address of principal executive office

                                 (215) 665-1700
- --------------------------------------------------------------------------------
                          Registrant's telephone number


Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days.

            Yes  X                                         No
               ------                                        -------



                            CABLE TV FUND 12-D, LTD.
                            ------------------------
                             (A Limited Partnership)

                      CONDENSED CONSOLIDATED BALANCE SHEET
                      ------------------------------------
                                   (Unaudited)



                                                                                September 30,            December 31,
                                        ASSETS                                      2001                    2000
                                        ------                                 ---------------         ---------------

                                                                                                      
Cash                                                                                $1,565,757              $1,613,430
                                                                               ---------------         ---------------

                                                                                    $1,565,757              $1,613,430
                                                                               ===============         ===============


                          LIABILITIES AND PARTNERS' CAPITAL
                          ---------------------------------

LIABILITIES:
   Advances from affiliates..............................................              $77,559                  $3,442
                                                                               ---------------         ---------------

         Total liabilities...............................................               77,559                   3,442
                                                                               ---------------         ---------------

PARTNERS' CAPITAL:
   General Partner-
     Contributed capital.................................................                1,000                   1,000
     Distributions.......................................................          (21,153,765)            (21,153,765)
     Accumulated earnings................................................           21,524,816              21,555,264
                                                                               ---------------         ---------------

                                                                                       372,051                 402,499
                                                                               ---------------         ---------------

Limited Partners-
   Net contributed capital (237,339 units outstanding
     at September 30, 2001 and December 31, 2000)........................          102,198,175             102,198,175
   Distributions.........................................................         (182,130,796)           (182,130,796)
   Accumulated earnings..................................................           81,048,768              81,140,110
                                                                               ---------------         ---------------

                                                                                     1,116,147               1,207,489
                                                                               ---------------         ---------------

                                                                                    $1,565,757              $1,613,430
                                                                               ===============         ===============


            See notes to condensed consolidated financial statements.

                                       1


                            CABLE TV FUND 12-D, LTD.
                            ------------------------
                             (A Limited Partnership)

                 CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
                 ----------------------------------------------
                                   (Unaudited)



                                                                      Three Months Ended               Nine Months Ended
                                                                        September 30,                    September 30,
                                                                    2001             2000            2001             2000
                                                                -----------      -----------     -----------      -----------
                                                                                                       
OTHER INCOME (EXPENSE):
   Interest income............................................      $14,366          $22,237         $57,662          $43,550
   Interest expense...........................................                        (1,353)                          (2,662)
   Other, net.................................................      (30,654)         (43,990)       (179,452)        (153,158)
                                                                -----------      -----------     -----------      -----------

NET LOSS......................................................     ($16,288)        ($23,106)      ($121,790)       ($112,270)
                                                                ===========      ===========     ===========      ===========

ALLOCATION OF NET LOSS:
   General Partner............................................      ($4,072)         ($5,777)       ($30,448)        ($28,068)
                                                                ===========      ===========     ===========      ===========

   Limited Partners...........................................     ($12,216)        ($17,329)       ($91,342)        ($84,202)
                                                                ===========      ===========     ===========      ===========

NET LOSS PER LIMITED PARTNERSHIP UNIT.........................       ($0.05)          ($0.07)         ($0.38)          ($0.35)
                                                                ===========      ===========     ===========      ===========

WEIGHTED AVERAGE NUMBER OF LIMITED
   PARTNERSHIP UNITS OUTSTANDING .............................      237,339          237,339         237,339          237,339
                                                                ===========      ===========     ===========      ===========



            See notes to condensed consolidated financial statements.

                                       2



                            CABLE TV FUND 12-D, LTD.
                            ------------------------
                             (A Limited Partnership)

                 CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS
                 ----------------------------------------------
                                   (Unaudited)



                                                                                              Nine Months Ended
                                                                                                September 30,
                                                                                          2001                  2000
                                                                                      ------------          ------------

                                                                                                        
CASH FLOWS FROM OPERATING ACTIVITIES:
   Net loss.....................................................................         ($121,790)            ($112,270)
   Adjustments to reconcile net loss to net cash
     provided by operating activities:
       Transactions with affiliates.............................................            74,117             2,428,485
                                                                                      ------------          ------------

         Net cash (used in) provided by operating activities....................           (47,673)            2,316,215

CASH FLOWS FROM FINANCING ACTIVITIES:
   Distribution to venture partners.............................................                                (569,158)
                                                                                      ------------          ------------

         Net cash used in financing activities..................................                                (569,158)
                                                                                      ------------          ------------

(Decrease) increase in cash.....................................................           (47,673)            1,747,057

Cash, beginning of period.......................................................         1,613,430                   302
                                                                                      ------------          ------------

Cash, end of period.............................................................        $1,565,757            $1,747,359
                                                                                      ============          ============

SUPPLEMENTAL CASH FLOW DISCLOSURE:
   Interest paid................................................................              $581               $31,145
                                                                                      ============          ============



            See notes to condensed consolidated financial statements.

                                       3


                            CABLE TV FUND 12-D, LTD.
                            ------------------------
                             (A Limited Partnership)

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
              ----------------------------------------------------
                                   (Unaudited)

(1)      The  condensed  consolidated  balance sheet as of December 31, 2000 has
been condensed from the audited  consolidated balance sheet as of that date. The
condensed  consolidated  balance sheet as of September  30, 2001,  the condensed
consolidated  statement  of  operations  for the  three  and nine  months  ended
September 30, 2001 and 2000,  and the condensed  consolidated  statement of cash
flows for the nine months ended  September  30, 2001 and 2000 have been prepared
by Cable TV Fund 12-D, Ltd. (the "Partnership") and have not been audited by the
Partnership's   independent  auditors.   In  the  opinion  of  management,   all
adjustments  necessary  to present  fairly the  financial  position,  results of
operations and cash flows as of September 30, 2001 and for all periods presented
have been made.

         Certain  information  and note  disclosures  normally  included  in the
Partnership's annual financial statements prepared in accordance with accounting
principles  generally  accepted  in the United  States  have been  condensed  or
omitted.  These condensed  consolidated  financial  statements should be read in
conjunction  with the financial  statements  and notes  thereto  included in the
Partnership's  December  31,  2000  Annual  Report on Form 10-K  filed  with the
Securities  and Exchange  Commission.  The results of operations for the periods
ended September 30, 2001 are not necessarily indicative of operating results for
the full year.

         The  accompanying   consolidated   financial  statements   historically
included  100% of the  accounts  of the  Partnership  and those of Cable TV Fund
12-BCD  Venture  (the  "Venture")  reduced by the 24%  minority  interest in the
Venture.  All  interpartnership  accounts and transactions were eliminated.  The
Venture has sold all of its cable television systems. The Venture was liquidated
in October 2000 and therefore,  the Partnership has no investment in the Venture
at September 30, 2001 or December 31, 2000. The Partnership and the Venture have
continued in existence  because of pending  litigation in which the  Partnership
and the Venture are a party. It cannot be predicted when the Partnership and the
Venture will be dissolved.

(2)      The   Partnership   reimburses   its   general   partner   for  certain
administrative  expenses.  These  expenses  represent  the  salaries and related
benefits paid for corporate  personnel.  Such personnel provide  administrative,
accounting, tax, legal and investor relations services to the Partnership.  Such
services,  and their related costs, are necessary to the  administration  of the
Partnership  until it is dissolved.  Such charges were included in Other, net in
the accompanying condensed consolidated statement of operations.  Reimbursements
made to the general partner by the Partnership for  administrative  expenses for
the three and nine month  periods  ended  September  30,  2001 were  $23,878 and
$85,488, respectively. Reimbursements made to the general partner by the Venture
for administrative expenses for the three and nine month periods ended September
30, 2000 were $42,787 and $140,477, respectively, of which $32,321 and $106,116,
respectively, was attributed to the Partnership.


                                       4


                            CABLE TV FUND 12-D, LTD.
                            ------------------------
                             (A Limited Partnership)

         MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
         ---------------------------------------------------------------
                              RESULTS OF OPERATIONS
                              ---------------------

FINANCIAL CONDITION
- -------------------

         The  Venture  was  liquidated  in  October  2000  and  therefore,   the
Partnership  has no investment  in the Venture at September  30, 2001.  The only
asset of the  Partnership  at  September  30, 2001 was its cash on hand which is
being held in reserve to pay the Partnership's administrative expenses until the
Partnership  is dissolved.  The  Partnership  and the Venture have  continued in
existence because of pending litigation in which the Partnership and the Venture
are a party. It cannot be predicted when the Partnership and the Venture will be
dissolved.

RESULTS OF OPERATIONS
- ---------------------

         The  Venture  has  sold all of its  cable  television  systems  and was
liquidated  in October  2000.  Interest  income of $57,662 was earned during the
first nine months of 2001 on the cash balance on hand. Other expense of $179,452
incurred in the first nine months of 2001 by the Partnership  related to various
costs associated with the administration of the Partnership.

                           PART II - OTHER INFORMATION

Item 1. Legal Proceedings

         Please  refer to Part II - Item 1 of our June 30,  2001 Form 10-Q for a
discussion of recent developments related to our legal proceedings.

Item 6. Exhibits and Reports on Form 8-K.

         a)   Exhibits

              None.

         b)   Reports on Form 8-K

              None.



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                                    SIGNATURE


         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  registrant  has duly  caused  this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                                        CABLE TV FUND 12-D, LTD.

                                        BY:   COMCAST CABLE COMMUNICATIONS, INC.
                                              ----------------------------------
                                              General Partner


                                        By:   /S/ Lawrence J. Salva
                                              ----------------------------------
                                              Lawrence J. Salva
                                              Senior Vice President
                                              (Principal Accounting Officer)


Dated: November 13, 2001




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