WHAT2WATCH: Mad Men, Bro?

Mad Men is set in the 1960s, and sometimes it seems as if the show has been gone for about that long. Season five will commence (AMC, Sunday 9 p.m.) exactly 20 months since the previous season premiere. That’s long enough for Jon Hamm to have made more inroads to an eventual film career, January Jones to get pregnant, and Matthew Weiner to become the last person on AMC who is making any money. With so many of this season’s highly touted new series winding up as disappointments in both a ratings and a creative sense, the return of this sure thing couldn’t come soon enough.

Weiner is always close-lipped when it comes to details, a tendency that has only grown as time has gone on. So details about the premiere episode are slender, aside from its title (“A Little Kiss”) and its two hour, eight minutes running time. But given that the previous season ended in 1965, it stands to reason that Season 5 will bring us into a time when it’s apparent that all hell will soon be breaking loose – something that will no doubt create new angst for Don Draper, who has changed his identity but disapproves of almost all other changes. With a new young wife and continual reminders of younger competitors at work, more crises are sure to follow for our favorite philandering ad wizard.

Also this week:

Monday: Two and a Half Men (CBS, 9 p.m.): Alan’s and Lyndsey’s mothers meet for the first time, while Jake and Eldridge ask Walden to drive them to a hot party. Georgia Engel, who has no doubt taken notice of what her old colleague Betty White has been up to lately, plays Lyndsey’s mom.

Tuesday: The River (ABC, 9 p.m.): It’s the season finale (and probably the final finale) of the latest evidence that America just doesn’t want to get on board with mystery-like shows anymore. As the boat heads towards its rendezvous with weirdness, another crew member is attacked, and ethnic stereotype Jahel summons the spirit world.

Wednesday: Bent (NBC, 9 p.m. and 9:30 p.m.): This sitcom is going to be gone before most of you realize it’s here (six episodes are scheduled over three weeks), so catch it while you can. Amanda Peet plays a newly divorced woman who contemplates getting involved with the man who is renovating her house. So does she leave the money on the dresser?

Thursday: Project Runway All-Stars (Lifetime, 9 p.m.): I said when this all began that the entire all-star idea was a means to give fans the Mondo Guerra win that everyone was allegedly clamoring for. We’ve now reached the final episode, and nothing has happened to make me change my mind, even though Mondo has been acting like a humungous jackass of late.

Friday: Supernatural (CW, 9 p.m.): Sam ends up in a mental hospital after being driven insane by Lucifer. Yeah, I can see how that might happen. Dean’s journey through the heebie-jeebie world looking for help for his brother takes him in a surprising direction.

Saturday: Being Human (BBC America, 9 p.m.): A teenage vampire has an affair with a schoolteacher – wait. This might not be so scandalous. Maybe it’s like that Robert Pattison situation, where the vampire only looks like a teen and is really 90 years old, which makes boredom the only crime here!