Cheers was still an incredibly popular show when it went off the air in 1993. NBC, desperate to keep the money train moving along, went ahead with a spinoff about psychologist Frasier Crane. Few people involved probably imagined it would last 11 seasons and prove to be one of the most popular sitcoms of the entire decade. The creators had the wisdom to move the action from Boston to Seattle, limiting the references to Cheers and letting Frasier establish his own universe. The show ran out of gas near the very end, but it had an incredible run and allowed Kelsey Grammer to play the same character for two decades, nearly a TV record.