9:31 pm/ET NBC
With Friends like these...Jennifer Aniston continues 30 Rock's rockin' run of great guest stars.
Read on for previews of ER, Grey's Anatomy, Smallville and It's Always Sunny in Philadelphia.
Jean-Georges Vongerichten, Padma Lakshmi and, Tom Colicchio, Top Chef
Top Chef: New York
10 pm/ET Bravo
Order up! The culinary-arts competition series gets cooking with its Season 5 opener, served up in a supersize ration no less.
Read on for previews of Bones, the 42nd Annual CMA Awards, Life and Stylista.
Kym Johnson and Warren Sapp, Dancing with the Stars
Dancing With the Stars
9 pm/ET ABC
Last week proved that as tough as soap diva Erica Kane is, she ultimately met her match on the ballroom floor. Tonight someone else will have to accept defeat (with any luck, as gracefully as Susan Lucci did) when this contest downsizes from five to four contestants.
Read on for previews of Law & Order: SVU, Fringe, 90210 and NCIS.
Sophia Bush and Hilarie Burton, One Tree Hill
One Tree Hill
9 pm/ET CW
This show often attracts top music acts, especially for their episodes in which Peyton stages concerts.
Read on for previews of Gossip Girl, Chuck, Inside the Actors Studio and Heroes.
Sam Trammell and Anna Paquin, True Blood
9 pm/ET HBO
Considering Sookie laid down with a dog and woke up next to Sam in his birthday suit, chances are pretty good the nudist story he told Andy isn't going to fly this time.
Read on for previews of Hannah Montana, Brothers & Sisters, Dexter and Entourage.
Jennette McCurdy and Miranda Cosgrove, iCarly
8 pm/ET Nickelodeon
In a special 90-minute episode, Carly and her friends go on a trip to Japan when her show is nominated for a Web award, and it turns out to be quite an adventure!
Read on for previews of iCarly, Austin City Limits, Mail Order Bride, True Jackson, VP and Taxicab Confessions: New York, New York 3.
Real Time with Bill Maher
11 pm/ET HBO
Since this show began in 2003, it's hard to recall many genuinely happy moments for the left-leaning Maher.
Read on for previews of Are You Smarter Than a 5th Grader?, Crossroads, Sanctuary and Don't Forget the Lyrics!.
Tom Welling and Erica Durance, Smallville
8 pm/ET CW
An unexpected trip to the Phantom Zone with Clark turns Lois into a murderous villain bent on terrorizing Metropolis.
Read on for previews of 30 Rock, CSI, ER and Life on Mars.
10 pm/ET Bravo
The curtain falls on the home-decorating reality show (as do the shades, blinds and drapes).
Read on for previews of Bones, Dirty Sexy Money, Dancing with the Stars and Criminal Minds.
Jon Stewart, Stephen Colbert
Indecision '08: America's Choice
10 pm/ET Comedy Central
Pundits love to talk about undecided voters this time of year, but nobody does indecision better than Jon Stewart and Stephen Colbert.
Read on for previews of Election Night Coverage, Privileged, The Shield and Frank TV.