[Some spoilers follow for the current seasons of  The Comeback  and  Paradise .] The new season of  The Comeback , in addition to heralding the return of one of the great annoying-watchable characters in premium cable television, also introduces an element we’ve yet to see dramatized in comedies: AI as plot device. Kudrow’s Valerie Cherish returns after many years away to find that television, or at least a certain kind of commoditized fast-streaming television, can now be written largely by machine. The show’s cringe-comedy dystopia dances on satire’s edge; are we to laugh at the replacement of human slop or fear what else could be taken over? Either way, Kudrow and her fellow executive producer Michael Patrick King leave one truth unchallenged: Computers can already do plenty of creative jobs.…