OPTION AGREEMENT
                                ----------------

            OPTION AGREEMENT dated March 24, 1997 and amended July 29, 1997
between ACTV, Inc., a Delaware corporation (the "Corporation") and David Reese
(the "Employee").

            The Corporation desires to grant to the Employee the right and
option to purchase up to 89,683 shares (the "Option Shares") of Common Stock
(the "Common Stock"), of the Corporation, on the terms and subject to the
conditions hereinafter set forth.

            NOW, THEREFORE, in consideration of the receipt of $1.00 and other
good and valuable consideration, the receipt of which is hereby acknowledged,
the parties hereby agree as follows:

            SECTION 1. Option to Purchase Common Stock.

                  a.    Subject to Section 12 hereof, the Corporation hereby
grants to the Employee an option (the "Option") to purchase from the Corporation
89,683 Option Shares, at a purchase price of $1.50 per Option Share (the "Option
Price"). The Employee's right and option to purchase the Option Shares are fully
vested, so long as the Employee is employed by the Corporation . With respect to
the Option, the "Option Period" shall commence on the date hereof and terminate
on December 31, 2002.

                  b.    The Option may be exercised by the Employee by delivery
to the Corporation, at any time commencing one year from the date hereof, of a
written notice (the "Option Notice"), which Option Notice shall state the
Employee's intention to exercise the Option, the date on which the Employee
proposes to purchase the Option Shares (the "Closing Date") and the number of
Option Shares to be purchased on the Closing Date, which Closing Date shall be
no later than 30 days nor earlier than 10 days following the date of the Option
Notice. Upon receipt by the Corporation of an Option Notice from the Employee,
the Employee shall be obligated to purchase that number of Option Shares to be
purchased on the Closing Date set forth in the Option Notice.

                  c.    The purchase and sale of Option Shares acquired pursuant
to the terms of this Option Agreement shall be made on the Closing Date at the
offices of the Corporation. Delivery of the Stock certificate or other
instrument registered in the name of the Employee, evidencing the Option Shares
being purchased on the Closing Date, shall be made by the Corporation to the
holder of this Option on the Closing Date against the delivery to the
Corporation of a check in the full amount of the aggregate purchase price
therefor.

            SECTION 2. Representations and Warranties of The Holder. The
Employee hereby represents and warrants to the Corporation that in the event the
Employee acquires any Option Shares, such Option Shares will be acquired for his
own

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account, for investment and not with a view to the distribution thereof. The
Employee understands that except as set forth in Section 6 hereof, the Option
Shares will not be registered under the Securities Act of 1933, as amended (the
"Securities Act"), by reason of their issuance in a transaction exempt from the
registration requirements of the Securities Act pursuant to Section 4 (2)
thereof and that they must be held indefinitely unless a subsequent disposition
thereof is registered under the Securities Act or the transaction is exempt from
registration.

            SECTION 3. Reorganization; Mergers; Sales; Etc. If, at any time
during the Option Period, there shall be any capital reorganization,
reclassification of Common Stock (other than a change in par value or from par
value to nor par value or from no par value to par value or as a result of a
stock dividend or subdivision, split-up or combination of shares), the
consolidation or merger of the Corporation with or into another corporation or
of the sale of all or substantially all the properties and assets of the
Corporation as an entirety to any other corporation or person, the unexercised
and fully vested portion of this Option shall, after such reorganization,
reclassification, consolidation, merger or sale, be exercisable for the kind and
number of shares of stock or other securities or property of the Corporation or
of the corporation resulting from such consolidation or surviving such merger or
to which such properties and assets shall have been sold to which the Employee
would have been entitled if the Employee had held shares of Common Stock
issuable upon the exercise hereof immediately prior to such reorganization,
reclassification, consolidation, merger or sale. The provisions of this Section
3 shall similarly apply to successive reorganizations, reclassifications,
consolidations, mergers and sales.

            SECTION 4. Adjustment of Option Shares and Option Price.

                  a.    The number of Option Shares subject to this Option
during the Option Period shall be cumulative as to all prior dates of
calculation and shall be adjusted for any stock dividend, subdivision, split-up
or combination of Common Stock.

                  b.    The Option Price shall be subject to adjustment from
time to time as follows:

                        (1)   If, at any time during the Option Period, the
number of shares of Common Stock outstanding is increased by a stock dividend
payable in shares of Common Stock or by a subdivision or split-up of shares of
Common Stock, then, immediately following the record date fixed for the
determination of holders of shares of Common Stock entitled to receive such
stock dividend, subdivision or split-up, the Option Price shall be appropriately
decreased so that the number of shares of Common Stock issuable upon the
exercise hereof shall be increased in proportion to such increase in outstanding
shares.

                        (2)   If, at any time during the Option Period, the
number of


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shares of Common Stock outstanding is decreased by a combination of outstanding
shares of Common Stock, then, immediately following the record date for such
combination, the Option Price shall be appropriately increased so that the
number of shares of Common Stock issuable upon the exercise hereof shall be
decreased in proportion to such decrease in outstanding shares.

            SECTION 5. Termination of the Options.

                  a.    Termination of Options in General. The Option granted
hereby shall terminate and the Option shall no longer be exercisable after
December 31, 2002. b. Death of the Optinee. In the event that an Employee shall
die prior to his complete exercise of the Option, the Option may be exercised in
whole or in part only by the Employee's estate or on behalf of such person or
persons to whom the Employee's rights pass under his Will or by the laws of
descent and distribution.

                  b. Death of the Optinee. In the event that an Employee shall
die prior to his complete exercise of the Option, the Option may be exercised in
whole or in part only by the Employee's estate or on behalf of such person or
persons to whom the Employee's rights pass under his Will or by the laws of
descent and distribution.

            SECTION 6. Piggyback Registration.

                  a.    If at any time commencing the Corporation proposes to
register any of its securities under the Securities Act (other than in
connection with a merger or pursuant to Form S-8 or other comparable Form) it
will give written notice by registered mail, at least thirty (30) days prior to
the filing of such registration statement, to the Employee of its intention to
do so. If the Employee notifies the Corporation within ten (10) days after
receipt of any such notice of his desire to include any Option Shares, owned by
him (on a fully vested basis) in such proposed registration statement, the
Corporation shall afford the Employee the opportunity to have any of his Option
Shares registered under such registration statement, the Corporation shall
afford the Employee the opportunity to have any of his Option Shares registered
under such registration statement; provided that (i) such inclusion does not
pose any significant legal problem and (ii) if such registration statement is
filed pursuant to an underwritten public offering, the underwriter approves such
inclusion.

                  b.    Notwithstanding the provisions of this Section 6, the
Corporation shall have the right at any time after it shall have given written
notice pursuant to this Section 6 (irrespective of whether a written request for
inclusion of any Option Shares shall have been made) to elect not to file any
such proposed registration statement, or to withdraw the same after the filing
but prior to the effective date thereof.

                  c.    Employee will cooperate with the Corporation in all
respects in connection with this Agreement, including, timely supplying all
information reasonably requested by the Corporation and executing and returning
all documents reasonably requested in connection with the registration and sale
of the Option Shares. In addition, Employee will comply with all applicable
provisions of state and federal securities laws, including rule 10b-6 and will
not, during the course of a distribution, purchase any of


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the securities being distributed.

                  d.    All expenses incurred in any registration of the Option
Shares under this Agreement shall be paid by the Corporation, including, without
limitation, printing expenses, fees and disbursements of counsel for the
Corporation, expenses of any audits to which the Corporation shall agree or
which shall be necessary to comply with governmental requirements in connection
with any such registration, all registration and filing fees for the Option
Shares under federal and state securities laws, and expenses of complying with
the securities or blue sky laws of any jurisdictions; provided, however, the
Corporation shall not be liable for (a) any discounts or commissions to any
underwriter; (b) any stock transfer taxes incurred with respect to Option Shares
sold in the offering or (c) the fees and expenses of counsel for Employee,
provided that the Corporation will pay, the costs and expenses of Employee's
counsel when the Corporation's counsel is representing all selling security
holders.

            SECTION 7. Transfer of Option; Successors And Assigns. This
Agreement (including the Option) and all rights hereunder shall not be
transferable at any time without the prior written consent of the Corporation.
This Agreement and all the rights hereunder shall be binding upon and inure to
the benefit of the parties hereto and their respective successors, assigns and
transferees.

            SECTION 8. Notices. All notices or other communications which are
required or permitted hereunder shall be in writing and sufficient if delivered
personally or sent by registered or certified mail, postage prepaid, return
receipt requested, addressed as follows:

            If the Corporation, to:

                  ACTV, Inc.
                  1270 Avenue of the Americas - Suite 2401
                  New York, New York  10020
                  Attention:  William C. Samuels, Chief Executive Officer

            With a copy to:

                  Wesley C. Fredericks
                  Gersten, Savage, Kaplowitz, Fredericks & Curtin
                  101 East 52 Street
                  New York, New York  10022

            If to the Employee, to:

                  David Reese
                  30 Maclay Road
                  Montville, New Jersey  07045


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or to such other address as the party to whom notice is to be given may have
furnished to the other party in writing in accordance herewith. If mailed as
aforesaid, any such communication shall be deemed to have been given on the
third business day following the day on which the piece of mail containing such
communication is posted.

            SECTION 9.  Governing Law. This Agreement shall be governed by, and
construed in accordance with the laws of the State of New York.

            SECTION 10. Entire Agreement. This Agreement contains the entire
agreement between the parties hereto with respect to the transactions
contemplated herein and supersedes all previously written or oral negotiations,
commitments, representations and agreement, specifically the option agreements
dated March 1, 1989 and October 31, 1994.

            SECTION 11. Amendments and Modifications. This Agreement, or any
provision hereof, may not be amended, changed or modified without the prior
written consent of each of the parties hereto.

            SECTION 12. Termination. In addition to the termination provisions
set forth in Section 1 hereof, the Option shall terminate and the Option shall
no longer be exercisable on December 31, 2002.

            IN WITNESS WHEREOF, the parties hereto have caused this Option
Agreement to be executed and delivered as of the date first above written.


                                                     ACTV, Inc.



                                                     By:
                                                        ------------------------
                                                        William C. Samuels
                                                        Chief Executive Officer


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