What's New, Mr. Magoo? What's New, Mr. Magoo? is an American animated television series which aired from September 10 to December 24, 1977, on CBS. It was produced by DePatie-Freleng Enterprises and United Productions of America. The series has the voices of Jim Backus, Bob Ogle, Casey Kasem, Hal Smith and Frank Welker. This was the third series starring Mr. Magoo, following the 1960-1962 "Mister Magoo", and the 1964-1965 show "The Famous Adventures of Mr. Magoo". It was one of only two animated series from DePatie-Freleng Enterprises---besides "Bailey's Comets"---to air on the CBS Television Network.