The Walt Disney Company and starred in several Disney produced films. Ub Iwerks refined Disney's initial design of Mickey Mouse. Disney's first sound film "Steamboat Willie", a cartoon starring Mickey, was released on November 18, 1928 through Pat Powers' distribution company. It was the first Mickey Mouse sound cartoon released, but the third to be created, behind "Plane Crazy" and "The Gallopin' Gaucho". "Steamboat Willie" was an immediate smash hit, and its initial success was attributed not just to Mickey's appeal as a character, but to the fact that it was the first cartoon to feature synchronized sound. Disney used Pat Powers' Cinephone system,
Walt Disney Television (production company) of the parent company, then named Walt Disney Productions. In August 1994, with the departure of Walt Disney Studios chairman Jeffrey Katzenberg, its filmed entertainment business was split into two, with Walt Disney Pictures continuing with motion pictures and the newly created Walt Disney Television and Telecommunications for television under Joe Roth and Richard Frank respectively. At the time when Disney merged with Capital Cities/ABC, Disney Television was a part of Walt Disney Television and Telecommunications (WDTT). With the retirement of WDTT president Dennis Hightower in April 1996 and ongoing post-merger reorganization, Walt Disney Television (along with its Animation unit)