Cats 101 (8pm, Animal Planet) - The Season 4 premiere looks at Kurilian bobtail, chausie, dwelf, Burmilla and lambkin breeds.
20/20: Sunset Boulevard - The American Dream Machine (9pm, ABC) - Jay Schadler (left) reports from the famous 22-mile boulevard that stretches from Beverly Hills to the Pacific Ocean. Tales include a young war veteran who wants to be an actor, teenagers at Hollywood High, and the murder of a Hollywood beauty-turned-runaway. There are interviews with Johnny Depp, Keanu Reeves, Mickey Rourke, Alice Cooper, and Hugh Hefner -- all featured in a recent documentary, "Sunset Strip: The Movie." And also, unprecedented access to the Roxy nightclub, run by Lou Adler and his son Nic.
Alien Tornado (9pm, Syfy) - Aliens attack Earth with deadly electrical tornadoes, and it's up to a farmer, his smart high school daughter and a tornado blogger to thwart the horrific invasion. In other words, we are doomed.
The Firm (9pm, NBC) - Mitch makes a deal with Kevin Stack to keep Abby safe, and the FBI arrests Mitch and Ray. Also, Abby tries to manipulate her captors in a bid to escape.
Paul F. Tompkins: Laboring Under Delusions (11pm, Comedy Central) - A one-hour (too short!) comedy special in which Tompkins discusses some of his former jobs. This is really, really funny. Read more about it here.