* THE GREAT BRITISH BAKING SHOW. 8 p.m. Sunday, WHYY12.
Known in Britain as "The Great British Bakeoff," this BBC amateur competition already has a cultish following among U.S. fans watching online. Now it's on your actual TV. And they're starting with cake.
* THE COMEBACK. 10 p.m. Sunday, HBO.
You can go home again. Or at least you can if you're Valerie Cherish (Lisa Kudrow), the heartbreakingly funny character Kudrow and Michael Patrick King ("Sex and the City") brought back to HBO this season after a 9-year absence. Sunday's season finale is titled "Valerie Gets What She Really Wants." What do I really want? A season 3.
* MANHATTAN. 9 a.m. Saturday, WGN America.
Now that WGN is finally available on Comcast, you can catch a daylong marathon of the 13-episode first season of the '40s drama, set amid the effort to build the atomic bomb.