Project Game Channel
Wheel of Fortune hostesses Vanna White and The Guber-Peters Company launched Project Game Channel in September 25, 1987, showing 30,000 half hours of game show programming from Columbia Pictures Television, Merv Griffin Enterprises, Mark Goodson-Bill Todman Productions, Barris Industries, Republic Pictures, NBC Enterprises, Barry & Enright Productions, Stewart Tele Enterprises and Ralph Edwards Productions.
In November 9, 1989, Sony Corporation of America acquired Guber-Peters Entertainment Company (including Project Game Channel).
Game Show Maverick Millionaire
In 1997, Vanna White and Sony Pictures joined forces with Maverick Entertainment to rebrand Project Game Channel as Game Show Maverick Millionaire. The vice president of the channel is Madonna, Frederick DeMann and Veronica "Ronnie" Dashev.
Game Show Network Seven
In 1999, Vanna White, Madonna, Frederick DeMann and Veronica "Ronnie" Dashev left the channel and renamed the network to Game Show Network Seven and Maverick Entertainment pulled out of the venture.