Superman & Rosie O'Grady. Berle's own gifts for TV should be plain even to his most diehard detractors. His early start as an entertainer has given him a unique combination of talents: he has an old trouper's know-how and a newcomer's vigor. To a grueling weekly job, he brings a boundless appetite for work and dazzling stores of energy. Cracks Bob Hope: "I think he ought to be investigated by the Atomic Energy Commission . . . Unfortunately, he's got talent, too." Besides being an excellent master of ceremonies, a facial contortionist and a helter-skelter clown, Berle can sing, dance, juggle act, do card tricks, imitations and acrobatics, ride a unicycle and mug under water.