In 1948 UPA also found a home for itself at Columbia Pictures and began producing theatrical cartoons for the general public, instead of just using propaganda and military training themes; UPA also earned itself two Academy Award nominations for new cartoons starring The Fox And The Crow during its first two years in production. From there, the UPA animators began producing a series of cartoons that immediately stood out among the crowded field of mirror-image, copycat cartoons of the other studios. The success of UPA's "Mr. Magoo" series made all of the other studios sit up and take notice, and when the UPA short "Gerald McBoing-Boing" won an Oscar, the effect on Hollywood was immediate and electrifying. The UPA style was markedly different from everything else being seen on movie screens, and audiences responded to the change that UPA offered from the repetition of usual cat-mouse battles. Mr Magoo would go on to be the studio's most successful cartoon character. However, UPA would suffer a major blow after John Hubley was fired from the studio during the McCarthy Era in 1952, due to suspicions of his having ties to Communism; Steve Bosustow took over, but was not as successful as Hubley, and the studio was eventually sold to Henry Saperstein.