Cheers: "What is... Cliff Clavin?" The Academy of Television Arts & Sciences Foundation Presents 02:26 Tabs Who talked about this show Andy AckermanView Interview Andy Ackerman on working with Alex Trebek for the Jeopardy! episode of Cheers, "What is... Cliff Clavin?" Andy Ackerman on working with Alex Trebek for the Jeopardy! episode of Cheers, "What is... Cliff Clavin?"
