Exhibit 4(D)


                 FIRST AMENDMENT AND LIMITED WAIVER
                    TO LOAN AND SECURITY AGREEMENT

This First Amendment and Waiver to Loan and Security Agreement 
("Amendment") is dated November 26, 1996, and entered into by and among 
HELLER FINANCIAL, INC., as Agent ("Agent") and Lender ("Lender"), UNITEL 
VIDEO, INC. ("Borrower") and R Squared, Inc. ("Corporate Guarantor").

     WHEREAS, Agent, Lender, Borrower and Corporate Guarantor have entered into 
a Loan and Security Agreement (the "Agreement") dated December 12, 1995; 
and

     WHEREAS, Events of Default are in existence under subsection 8.1(C) of 
the Agreement as a result of Borrower's breach of (i) the Tangible Net Worth 
covenant contained in subsection 6.1 for the fiscal quarter ending August 
31, 1996, (ii) the Fixed Charge Coverage covenant contained in subsection 6.3 
for the three fiscal quarters ending August 31, 1996 and (iii) the Leverage 
Ratio covenant contained in subsection 6.4 for the fiscal quarter ending 
August 31, 1996 (collectively, the "Existing Events of Default"); and

     WHEREAS, Borrower and Corporate Guarantor have requested that Agent and 
Requisite Lenders waive the Existing Events of Default and amend the 
covenants set forth above; and

     WHEREAS, Borrower and Corporate Guarantor have requested that Agent and 
Requisite Lenders defer the payment due date of Term Loan B from October 
31, 1996 to December 31, 1996; and

     WHEREAS, Agent and Requisite Lenders have agreed to waive the Existing 
Events of Default, amend the Tangible Net Worth, Fixed Charge and Leverage 
Ratio covenants and defer the payment due date of Term Loan B until 
December 31, 1996, subject to the following terms and conditions;

     NOW THEREFORE, in consideration of the mutual conditions and agreements 
set forth in the Agreement and this Amendment, and other good and valuable 
consideration, the receipt and sufficiency of which are hereby acknowledged, 
the parties, intending to be legally bound, hereby agree as follows:

                        ARTICLE I. DEFINITIONS

     Section 1.01. DEFINITIONS. Capitalized terms used in this Amendment, to 
the extent not otherwise defined herein, shall have the same meanings as in 
the Agreement, as amended hereby.




                          ARTICLE II. AMENDMENTS

     Section 2.01. AMENDMENT TO SUBSECTION 1.1 "CERTAIN DEFINED TERMS." 
Subsection 1.1 shall be, and the same is hereby amended by adding the 
following new definitions, in proper alphabetical order, to said subsection:

     "Excess Availability" means, as of any date, the amount (if any) by 
     which the Maximum Revolving Loan Amount exceeds the outstanding principal 
     balance of the Revolving Loan.

     "Special Reserve" means a reserve in the amount of $500,000, which shall 
     be in effect until the earlier to occur of (a) the repayment in full of 
     Term Loan B or (b) Agent's receipt of equipment appraisals, which in 
     Agent's sole discretion, reflect equipment values sufficient to adequately
     collateralize the Term Loans.

     Section 2.02. AMENDMENT TO SUBSECTION 2.1(A)(2) "TERM LOAN 
B". Subsection 2.1(A)(2) shall be, and the same is hereby amended by 
deleting the defined term "Scheduled Installment of Term Loan B" appearing
in the second paragraph of said subsection and substituting the following 
therefor:

     "Scheduled Installment of Term Loan B" means the principal installment in 
an amount equal to $6,581,452.70, payable, subject to the provisions of 
subsection 2.4(B), on or before December 31, 1996 or earlier to occur of 
(i) the Termination Date or (ii) the acceleration of the Obligations in 
accordance with the provisions of subsection 8.3, at which time the entire 
unpaid principal amount thereof plus accrued interest thereon shall be due 
and payable.

     Section 2.03. AMENDMENT TO SUBSECTION 2.1(B) "REVOLVING LOAN", 
Subsection 2.1(B) shall be, and the same is hereby amended by deleting the 
definition of "Maximum Revolving Loan Amount" appearing in paragraph (1) in 
its entirety and substituting the following therefor.

     "Maximum Revolving Loan Amount" means, as of any date of determination, 
     the lesser of (a) the Revolving Loan Commitment MINUS the Letter of 
     Credit Reserve.

     Section 2.04. AMENDMENT TO SUBSECTION 6.1 "TANGIBLE NET 
WORTH". Subsection 6.1 shall be, and the same is hereby deleted in its 
entirety and the following substituted therefor:

                                      2



     Borrower shall at all times maintain Tangible Net Worth plus Subordinated 
     Debt of at least $18,000,000.

     Section 2.05. AMENDMENT TO SUBSECTION 6.3 "FIXED CHARGE 
COVERAGE". Subsection 6.3 shall be, and the same is hereby deleted in 
its entirety and the following substituted therefor:

     Borrower shall not permit its Fixed Charge Coverage to be less than the 
     ratios set forth below for the periods set forth below:

                PERIOD                                                   RATIO
                ------                                                   -----

        The fiscal quarter ending 2/29/96                                1.0:1.0
        The 2 fiscal quarters ending 5/31/96                             1.0:1.0
        The 3 fiscal quarters ending 8/31/96                             1.0:1.0
        The fiscal quarter ending 11/30/96                                .8:1.0
        The 2 fiscal quarters ending 2/28/97                              .8:1.0
        The 3 fiscal quarters ending 5/31/97                              .8:1.0
        The 4 fiscal quarters ending 8/31/97                             1.0:1.0
         and each fiscal quarter thereafter,
         on a rolling four quarter basis


      Section 2.06. AMENDMENT TO SUBSECTION 6.4 "LEVERAGE RATIO". 
Subsection 6.4 shall be, and the same is hereby amended by deleting the table 
appearing in said subsection and the substituting the following therefor:

                   PERIOD                                                  RATIO
                   ------                                                  -----

    Closing Date and on the last day of each                        3.25 to 1.00
      fiscal quarter thereafter, through 
      and including 8/31/96
    The fiscal quarter ending 11/30/96                              4.00 to 1.00
    The fiscal quarter ending 2/28/97                               3.75 to 1.00
    The fiscal quarter ending 5/31/97                               3.50 to 1.00
    The fiscal quarter ending 8/31/97                               3.25 to 1.00
    On the last day of each fiscal quarter                          2.75 to 1.00
      thereafter

      Section 2.07. AMENDMENT TO SECTION 6 "FINANCIAL COVENANTS".
A new subsection 6.5, entitled "Excess Availability" shall be added to 
section 6 immediately after subsection 6.4, as follows:

                                      3



      6.5 "EXCESS AVAILABILITY". Borrower shall not permit at any 
time its Excess Availability to be less than $250,000 for the period 
commencing September 1, 1996 and ending May 31, 1997.

                     ARTICLE III. LIMITED WAIVER

      Section 3.01. WAIVER OF FINANCIAL COVENANT DEFAULTS. Agent and 
Requisite Lenders hereby waive the Existing Events of Default. This is a 
limited waiver and shall not be deemed to contribute a waiver of any other 
existing Events of Default or any future breach of the Agreement or any of 
the other Loan Documents (including, without limitation, a breach of the 
covenants causing the Existing Events of Default for any periods other than 
those specified herein).

                     ARTICLE IV. MISCELLANEOUS

      Section 4.01. CONDITIONS. The  effectiveness of this Amendment is 
subject to the satisfaction of the following conditions precedent (unless 
specifically waived in writing by Agent and Requisite Lenders):

(a)  there shall have occurred no material adverse change in the business, 
     operations, financial conditions, profits or prospects, or in the 
     Collateral of the Borrower;

(b)  Borrower and Corporate Guarantor shall have executed and delivered such 
     other documents and instruments as Agent may require;

(c)  all corporate proceedings taken in connection with the transactions 
     contemplated by this Amendment and all documents, instruments and other 
     legal matters incident thereto shall be satisfactory to Agent and its 
     legal counsel.

     Section 4.02 RATIFICATION. The terms and provisions set forth in 
this Amendment shall modify and supersede all inconsistent terms and 
provisions set forth in the Agreement and, except as expressly modified and 
superseded by this Amendment, the terms and provisions of the Agreement, are 
ratified and confirmed and shall continue in full force and effect.

     Section 4.03 CORPORATE ACTION. The execution, delivery and 
performance of this Amendment have been authorized by all requisite 
corporate action on the part of Borrower and Corporate Guarantor and will 
not violate the Articles of Incorporation or Bylaws of either Borrower or 
Corporate Guarantor.

                                      4



     Section 4.04 SEVERABILITY. Any provision of this Amendment held 
by a court of competent jurisdiction to be invalid or unenforceable shall not 
impair or invalidate the remainder of this Amendment and the effect thereof 
shall be confirmed to the provision so held to be invalid or unenforceable.

     Section 4.05 SUCCESSORS AND ASSIGNS. This Amendment is binding 
upon and shall inure to the benefit of Agent, Lender, Borrower and Corporate 
Guarantor and their respective successors and assigns.

     Section 4.06 COUNTERPARTS. This Amendment may be executed in one 
or more counterparts, each of which when so executed shall be deemed to be an 
original, but all of which when taken together shall constitute one and the 
same instrument.

     IN WITNESS WHEREOF, the parties have executed this Amendment on the date 
first above written.

                                 HELLER FINANCIAL, INC.,
                                 as Agent and Lender 

                                 By: /s/Jerry Sepich
                                 Title: Vice President

                                 UNITEL VIDEO, INC.,
                                 as Borrower

                                 By: /s/Barry Knepper
                                 Title: CEO

                                 R SQUARED, INC.,
                                 as Corporate Guarantor


                                 By /s/Barry Knepper
                                 Title: CEO