The Simpsons (8pm, Fox) - In the 450th episode, Krusty the Clown teams up with Princess Penelope (Anne Hathaway) and proposes marriage to her. Features the voices of Eartha Kitt and Jackie Mason.
The Simpsons 20th Anniversary Special: In 3D! On Ice! (8:30pm, Fox) - Documentary filmmaker Morgan Spurlock interviews fans, cast members, writers, and celebrities in a celebration of the first 20 years of Matt Groening's animated masterpiece.
Chuck (9pm, NBC) - The third season of "Chuck" returns with two back-to-back episodes in which our favorite spy must figure out his new career path and also his relationship with Sarah. It's really good so please watch it.
Desperate Housewives (9pm, ABC) - In the aftermath of the plane crash (which resulted in Karl's death and Orson being paralyzed), Bree tries to undo some of the pain she has caused her husband.
Big Love (9pm, HBO) - In the season 4 premiere, Bill Henrickson (Bill Paxton) faces even more personal and professional challenges. He's launching the Mormon-friendly Indian casino (a storyline I grew very tired of in season three), dealing with leftover turmoil at the Juniper Creek compound, and of course, still trying to keep his three wives in check. If you need a refresher on the big moments from seasons 1-3, HBO has condensed it all into a five-minute video.