Caterina Scorsone, Kate Walsh, Taye Diggs Caterina Scorsone, Kate Walsh, Taye Diggs

These are the guest stars and events that the networks have planned for the second week of November sweeps:

Monday, Nov. 14

How I Met Your Mother (CBS)
Will Barney and Robin be able to keep their kiss a secret? They're going to try!

Two and a Half Men (CBS)

Alan returns from the hospital and is faced with some tough challenges. Like new furniture.

Hawaii Five-O (CBS)

A homeless Danno moves in with McGarrett. What could possibly go wrong?

20/20 (ABC)
Diane Sawyer interviews Rep. Gabrielle Giffords and her husband, astronaut Mark Kelly.

Tuesday, Nov. 15

The Biggest Loser (NBC)
The contestants compete in a pentathlon with Olympic skater Apolo Ohno as their coach.

Glee (Fox)
Sue starts a smear campaign (shocking!) to take down Bert Hummel, her biggest competitor for the congressional seat.

New Girl
Jess invites her work crush (guest star Justin Long) to the roommates' Thanksgiving dinner.

NCIS: Los Angeles (CBS)
Sam disappears in the Sudan while he's undercover.

Unforgettable (CBS)

Marilu Henner (on whom the lead character Carrie is based) plays Carrie's estranged aunt to helps investigate her sister's murder.

Wednesday, Nov. 16

Up All Night (NBC)
Reagan struggles with trying to fire her assistant (guest star Molly Shannon).

The X Factor (Fox)
We're finally down to the Top 10!

Suburgatory (ABC)

So much for Tessa's wish to have a low-key birthday. Dallas wrangles Dalia to plan an over-the-top Sweet 16.

Criminal Minds (CBS)

The team searches for Garcia's missing friend, whose daughter also disappeared seven years earlier.

Thursday, Nov. 17

20/20 (ABC)
Katie Couric interviews Regis Philbin on the eve of his final Live with Regis and Kelly broadcast.

Community (NBC)
Dean Pelton directs a commercial starring the study group; Abed shoots a behind-the-scenes documentary about it.

Private Practice (ABC)
In a special two-hour episode, the group rallies to save Amelia by staging an intervention. In rehab, she bonds with a younger patient (Disney starlet Debby Ryan).

Whitney (NBC)
Whitney and Alex try to convince a dog-pound owner (guest star Lisa Lampanelli) that they'd be worthy adoptive parents.

Friday, Nov. 18

Nikita (CW)
Uh oh! Berkhoff is captured and tortured after he refuses to reveal Nikita's whereabouts.

Jo comes face-to-face with a dangerous rapist she might've helped acquit on an earlier charge.

Blue Bloods (CBS)

Thanksgiving plans are thwarted when Henry suffers a heart attack.

Saturday, Nov. 19

Beneath the Blue (CW)
The Vampire Diaries might be on hiatus, but you can still watch star Paul Wesley in this movie about a young activist fighting to protect the local dolphin population in the Bahamas.

Sunday, Nov. 20

The Simpsons (FOX)
Homer cashes in on the tween craze by forming a team to write a novel. Andy Garcia voices the publisher.

American Music Awards (ABC)
Katy Perry, Justin Bieber and Nicki Minaj are scheduled to perform at this fan-voted awards show.

The Good Wife (CBS)
Funny lady Amy Sedaris will not be making cheeseballs when she guest-stars as Eli Gold's no-nonsense new rival.