NEW YORK (AP) -- David Letterman, who infrequently appears on anyone's show but his own, will make a guest appearance next month on "Live With Regis and Kelly." Letterman, host of CBS' "Late Show," ...

A 79 year-old man with a history of health troubles giving up his job as co-host of a daily morning talk show is not a surprise per se. Unless, of course, the 79 year-old man is Regis Philbin. Then it ...