Wheeere's Johnny? Ed McMahon's on a Search
When Ed McMahon's Next Big Star premieres Sunday (6 pm/ET on PAX), its titular host promises a competitive showcase for up-and-coming talent — much akin to Star Search, his popular 1980s series — as well as appearances by established entertainment superstars. (Steven Tyler, 'N Sync and Jessica Simpson, to name just a few, have already taped segments.) Yet one friend of McMahon's that you won't see is Johnny Carson, the Tonight Show host for whom McMahon served as announcer and sidekick for three decades. "It's very unlikely," McMahon tells TV Guide Online of the possibility for a cameo by Carson, who largely has been MIA since turning over the late-night talker to Jay Leno in 1992. "He just won't do anything on television. "Johnny has turned down hosting the Oscars five times," he adds, illustrating his point. "And that would be the show to host, with three billion people watc