Heard about how the White House pressured CBS to yank its flagship comedy show? Quick recap: The president took umbrage at its jokes about him and an unpopular war. Recorded in front of a studio audience and renowned for hip musical guests, the show was a hit with the under-25 demographic. Its genial presentation, packaged in formal suits and ties, belied its edginess. An alarmed Federal Communications Commission threatened the network’s license approvals.