Mad Men Sunday, 10 p.m., AMC
Will Sally expose Don’s affair? Will Peggy finally get fed up and leave? Will Bob Benson ever stop smiling? Will Don drink, smoke, brood, and make poor decisions? Well we can certainly count on that last thing as season 6 of “Mad Men” comes to a close. It’s been a mixed bag of episodes with a lot of individually excellent and memorable moments and great acting all around, so it will be interesting to see how Matt Weiner and the writers tie it all up.