(CBS) Veteran broadcaster Regis Philbin bids farewell to “Live!” on Friday in a one-hour tribute show|And I just thought this was probably a good time to go.” So what’s next for Philbin? He has hinted there may be something else in store, but told Couric, “If nothing comes up, fine, I’ve done it all anyway, believe me.” Several celebrities showed up this week for Philbin’s final farewell: Vice President Joe Biden, David Letterman, Donald Trump, Bret Michaels, Josh Groban, Tony Bennett and former “Live!” co-host Kathie Lee Gifford}