THE BEAT GOES ON

Robert Gordon is the figure Sha-Na-Na parodies as they stumble through klutzy versions of rock 'n' roll's past. Gordon might choose to cover the same tunes of that golden-oldies era, like Cochran's "Summertime Blues" or Frankie Ford's raucous "Sea Cruise," but while the imitations glitz themselves up for their weekly TV series, Gordon parades his slinky coiffure and Continental suits on the streets of New York for real.