ADVISORY/Cablevision Systems Corporation to Announce 2nd Quarter Earnings.

Business & High Tech Editors

ADVISORY...for Wednesday (Aug. 9)

--(BUSINESS WIRE)

Analyst Call Open to Interested Media

Wednesday, August 9, 2000

10:30AM (EST)

    WHAT: Cablevision Systems Corporation (NYSE:CVC) 2nd Quarter
          2000 earnings analyst conference call. Interested media
          invited to listen (only) to the conference call.

    WHEN: Wednesday, August 9, 2000

    TIME: 10:30 a.m. (eastern time)

    HOW:  Please call 1-212-346-7474 approximately 10 minutes prior to
          call.

          For those unable to join the conference call, you may access
          a recording of the call by dialing 1-800-633-8284. The call
          replay will begin at 12:30 p.m. (eastern time), Wednesday,
          August 9th until 12:30 p.m. (eastern time), Friday, August
          11th (mention reservation No. 15654233).

          Replays will also be available via the Internet at
          StreetEvents.com and StreetFusion.com for those who
          subscribe to their service. The Internet replays will be
          available until Wednesday, August 16th.