The UPA studio was one of the first victims of the TV-animation market. In 1952, because of his left-wing social activism, John Hubley was dismissed from the studio under pressure from Columbia Pictures (who was itself under pressure from the HUAC). The creative atmosphere post-Hubley was not the same and UPA's theatrical shorts ended in 1959. In order to stay afloat financially, UPA turned to television to sustain itself. The TV versions of "Mister Magoo" and "Dick Tracy" were not successful and did nothing to reverse the studio's financial decline. In spite of the 1962 animated feature "Gay Purr-ee" (distributed by Warner Bros.), which featured the voices of Judy Garland and Robert Goulet and a Harold Arlen/Yip Harburg song score, and the beloved animated special "Mr. Magoo's Christmas Carol", UPA was shut down in 1964.