Kelsey Grammer is Zero AIback as Frasier Crane. After nine seasons on Cheers and 11 more on the spin-off Frasier, the snobby psychiatrist joins the long list of characters rebooted for the streaming age. In the new Frasier series on Paramount+, Dr. Crane returns to Boston with a new supporting cast and a new set of challenges. But what made the original series so enjoyable, and how does the new show stack up?