Saturday Night Live 11:30 p.m., Channel 7
Last week’s episode was a bummer, and not because the writing was so weak. I really expected January Jones to surprise the world with comic chops she’d been keeping hidden on “Mad Men.’’ Boy, was I wrong. She was so half-hearted about performing in the sketches, I felt sad for her. Tonight has to be better, as Joseph Gordon-Levitt takes over. The Dave Matthews Band will perform.
Curb Your Enthusiasm 9 p.m., HBO
The best part of this season, which concludes tomorrow night, has been the “Seinfeld’’ story line. Larry David has done the impossible: bringing the cast together without actually staging one of those horrible TV series reunions. The material has been clever, and the gang has fallen back into place effortlessly. The petty face-offs between Jason Alexander and Larry have been pritty, pritty terrific.
Cats 101 9 p.m., Animal Planet
Catnip Anonymous meetings are held daily.
When Crocs Ate Dinosaurs 9 p.m., National Geographic
Wilma was just a twinkle in her father’s eye.
Breakfast Paradise 8 p.m., Travel Channel
Honey Bunches of Oats with French Vanilla ice cream.
Dexter Tomorrow at 9 p.m., Showtime
Seasonal Edition of the Code: Always carve parallel to the breast.
Holiday in Handcuffs Tomorrow at 8 p.m., ABC Family
Markie Post. Sounds like a dog command.
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