This is a summary. To read the whole story subscribe to BostonGlobe.com
Mad Men 10 p.m., AMC
You’ve got to love the secrecy that surrounds the plot developments on “Mad Men.” The official blurb for the season finale reads, “Don has a problem.” That could be a description for the entire season – hell, the entire series. I’ve enjoyed the way the sixth season has built slowly but surely, with Don’s life falling into serious disarray.
Under the Dome 10 p.m., CBS
More readers have expressed excitement about this Stephen King adaptation to me than about any other summer series. The story follows what happens when residents of a small town get cut off from the world by a clear but impenetrable barrier. Life in a fishbowl? Sounds like “Big Brother” gone sci-fi. The cast includes Dean Norris from “Breaking Bad,” Mike Vogel, Rachelle Lefevre, and Natalie Martinez.