ALL YOU NEED IS CASH NBC, March 22
All You Need Is Cash, a frantic spoof of Beatlemania, is 90 minutes long and has about three genuine laughs. By the prevailing standards of network comedy specials, like Mary Tyler Moore's recent hour on CBS, three laughs are nothing to scoff at. But this show promised so much more. The producer is Lome Michaels, the guiding spirit of NBC's feisty Saturday Night Live. The writer and co-director (with Gary Weis) is Eric Idle, of Monty Python's Flying Circus. The show's cast includes Mick and Bianca Jagger, George Harrison, Paul Simon and four out...