the mid-1980s, both venues began to suffer financial difficulties, partially due to the video game crash of 1983 and also due to both companies having opened more restaurants than they could afford to maintain. When Pizza Time Theatre filed for bankruptcy in 1984, ShowBiz bought the company, hoping that new talent and merchandising opportunities could save both companies. By 1985, Richard M. Frank had joined the company as CEO and chairman. The corporation maintained the two restaurant chains simultaneously for several years. Each continued its own stage shows and sold different merchandise. However, in the latter part of the decade, relations between Creative Engineering and ShowBiz began to sour. Aaron Fechter, the founder of Creative Engineering and creator of the Rock-afire Explosion, claimed that the fallout between his company and ShowBiz arose when ShowBiz asked him to sign away the licensing and copyrights to the Rock-afire Explosion, which would have allowed ShowBiz to cut production costs on the show, such as manufacture of future shows and royalty payments to Creative Engineering. Fechter refused, on the grounds that ShowBiz offered no monetary compensation for the rights. ShowBiz began toying with the idea of adding licensed characters such as Spider-Man or Garfield to the Rock-afire show, and three ShowBiz locations actually replaced Billy Bob and Looney Bird with Yogi Bear and Boo Boo animatronics in 1987. An experiment of Paul Linden and Dave Philipsen using JVC BR-7000 VHS Hi-Fi tape decks which integrated two stereo audio tracks, two longitudinal data tracks, and video led to a system in 1988 where television screens were installed above the Rock-afire stage as the company introduced their new Cyberstar TV screen system. During showtime, the characters were finally shown performing in video, as reel-to-reel formatted tapes began to be used less often. A reel-to-reel version of Cyberstar called "Cybervision" was tested at two restaurants in Austin, TX; Cybervision can be distinguished from Cyberstar by the fact that they only feature the animatronics, and no graphics or walkaround characters. Cyberstar was also implemented at Pizza Time Theatre, and remains in use at all Chuck E. Cheese's locations, albeit using DVDs rather than VHS tapes. The changes to the Rock-afire stage were very minor, as the company later decided to enact a process called "Concept Unification," in which all ShowBiz Pizza locations would be remodeled into Chuck E. Cheese's. The remodel included the elimination of all Rock-afire characters