EXHIBIT 99.1

          PRESS RELEASE OF PINNACLE SYSTEMS, INC. DATED MARCH 11, 1999

For Immediate Release

        Pinnacle Systems, Inc. Completes Acquisition of Truevision, Inc.

MOUNTAIN VIEW, Calif.,  3/12/99--Pinnacle  Systems,  Inc. (NASDAQ: PCLE - news),
today announced that the acquisition of Truevision,  Inc. (NASDAQ:  TRUV - news)
has been consummated.

Under the terms of the merger, first announced on December 16, 1998,  Truevision
stockholders will receive 0.0313 of a share of Pinnacle Systems common stock for
each share of Truevision common stock.  Based on the shares of Truevision common
stock  outstanding,  Pinnacle  Systems expects to issue a total of approximately
413,000 shares of Pinnacle  common stock in connection  with the  acquisition of
Truevision.

"We are very excited  about  merging  these two  companies,"  said Mark Sanders,
president  and chief  executive  officer of Pinnacle  Systems.  "We believe this
transaction  will  strengthen  Pinnacle's  position as the  leading  supplier of
digital  video  capture  and  editing  products.   Truevision's   product  lines
complement  Pinnacle's  well,  and  together  we will serve a far wider array of
customers and  applications  in the digital video editing  market.  Importantly,
Truevision  enjoys  strategic  relationships  with  a  number  of  key  industry
partners,  which is also  complementary.  In  addition,  we  believe  there  are
potential  efficiencies to be gained,  particularly in the areas of distribution
and manufacturing."

"Most  important,  Truevision  has  invested  heavily  in  its  next  generation
architecture for video editing,  particularly in new custom chip technology that
is scaleable for high definition television (HDTV) applications. We believe that
combining this technology with parallel chip  developments  underway at Pinnacle
will afford Pinnacle competitive advantages in next-generation  capture card and
video editing platforms," Sanders continued.

About Pinnacle  Systems:  Pinnacle  Systems'  broadcast,  desktop,  and consumer
products  provide video  professionals  and consumers  the  sophisticated  tools
needed to create  dazzling video programs  faster and more  affordably than ever
before.  Pinnacle  Systems may be reached at (650) 526-1600 or on the World Wide
Web at www.pinnaclesys.com.

All trademarks and  registered  trademarks are the property of their  respective
owners and are used for  identification  or  reference  purposes  only,  with no
intent to infringe on copyrights.

Certain  of the  statements  in this press  release,  including  the  statements
relating to Pinnacle's  expectations  about the synergies  related to the merger
are forward-looking  statements that are subject to risks and uncertainties that
could cause results to be materially different than expectations. Such risks and
uncertainties include, but are not limited to, risks associated with Acquisition



transactions and the related integration of operations. Investors are advised to
read each  Company's  annual and quarterly  reports on Forms 10-K and 10-Q filed
with the  Securities  and Exchange  Commission  for a fuller  discussion of such
risks and uncertainties.

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All trademarks and  registered  trademarks are the property of their  respective
owners and are used for  identification  or  reference  purposes  only,  with no
intent to infringe on copyrights.

        All original content is copyright (C)1998-1999, Pinnacle Systems.