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

                                 MARCH 31, 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)

                                                                                         March 31,              December 31,
                                        ASSETS                                             2001                    2000
                                        ------                                        ----------------        ----------------
                                                                                                             
Cash                                                                                       $1,593,310              $1,613,430
                                                                                      ----------------        ----------------

                                                                                           $1,593,310              $1,613,430
                                                                                      ================        ================


                          LIABILITIES AND PARTNERS' CAPITAL

LIABILITIES:
   Advances from affiliates.....................................................               $3,398                  $3,442
                                                                                      ----------------        ----------------

         Total liabilities......................................................                3,398                   3,442
                                                                                      ----------------        ----------------

PARTNERS' CAPITAL:
   General Partner-
     Contributed capital........................................................                1,000                   1,000
     Distributions..............................................................          (21,153,765)            (21,153,765)
     Accumulated earnings.......................................................           21,550,245              21,555,264
                                                                                      ----------------        ----------------

                                                                                              397,480                 402,499
                                                                                      ----------------        ----------------

Limited Partners-
   Net contributed capital (237,339 units outstanding
     at March 31, 2001 and December 31, 2000)...................................          102,198,175             102,198,175
   Distributions................................................................         (182,130,796)           (182,130,796)
   Accumulated earnings.........................................................           81,125,053              81,140,110
                                                                                      ----------------        ----------------

                                                                                            1,192,432               1,207,489
                                                                                      ----------------        ----------------

                                                                                           $1,593,310              $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)

                                                                                         For the Three Months Ended
                                                                                                  March 31,
                                                                                         2001                  2000
                                                                                      ------------          ------------

OTHER (EXPENSE) INCOME:
                                                                                                          
   Interest income..............................................................          $24,183
   Minority interest in consolidated net loss...................................                                $16,419
   Other, net...................................................................          (44,259)              (67,126)
                                                                                      ------------          ------------

NET LOSS........................................................................         ($20,076)             ($50,707)
                                                                                      ============          ============

ALLOCATION OF NET LOSS:
   General Partner..............................................................          ($5,019)             ($12,677)
                                                                                      ============          ============

   Limited Partners.............................................................         ($15,057)             ($38,030)
                                                                                      ============          ============

NET LOSS PER LIMITED PARTNERSHIP UNIT...........................................           ($0.06)               ($0.16)
                                                                                      ------------          ------------


WEIGHTED AVERAGE NUMBER OF LIMITED
   PARTNERSHIP UNITS OUTSTANDING ...............................................          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)

                                                                                          For the Three Months Ended
                                                                                                  March 31,
                                                                                          2001                  2000
                                                                                      -------------         -------------

CASH FLOWS FROM OPERATING ACTIVITIES:
                                                                                                          
   Net loss.....................................................................          ($20,076)             ($50,707)
   Adjustments to reconcile net loss to net cash
     (used in) provided by operating activities:
       Minority interest in consolidated loss...................................                                 (16,419)
       Transactions with affiliates.............................................               (44)            2,393,979
                                                                                      -------------         -------------

         Net cash (used in) provided by operating activities....................           (20,120)            2,326,853
                                                                                      -------------         -------------

(Decrease) increase in cash.....................................................           (20,120)            2,326,853

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

Cash, end of period.............................................................        $1,593,310            $2,327,155
                                                                                      =============         =============

SUPPLEMENTAL CASH FLOW DISCLOSURE:
   Interest paid................................................................              $581          $
                                                                                      =============         =============


                                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 March 31,  2001 and the  condensed
consolidated  statements  of  operations  and of cash flows for the three months
ended  March 31, 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 March
31, 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 generally
accepted accounting  principles 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 period ended March 31, 2001 are
not necessarily indicative of operating results for the full year.

         The  accompanying   consolidated   financial  statements   historically
included  100 percent of the accounts of the  Partnership  and those of Cable TV
Fund 12-BCD Venture (the "Venture")  reduced by the 24 percent 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 March 31, 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 months ended ended March 31, 2001 were $36,678. Reimbursements made to the
general partner by the Venture for administrative  expenses for the three months
ended March 31,  2000 were  $52,920,  of which  $39,976  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 March 31, 2001.  The only asset
of the Partnership at March 31, 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.  Other  expense of $44,259  incurred  in the first
quarter of 2001 by the Partnership  related to various costs associated with the
administration of the Partnership.


                           PART II - OTHER INFORMATION

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

         a)   Exhibits

              None.

b)       Reports on Form 8-K

              None.








                                       5



                                   SIGNATURES


         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: May 15, 2001













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