After a beloved Marine is fatally stabbed, the team makes a surprising discovery about his past.

(Originally Aired: Tuesday Sep 27, 2011)

NCIS teams up with the NSA in an effort to locate the mastermind behind a software program linked to a cyberattack on the Department of Defense.

(Originally Aired: Tuesday Sep 27, 2011)

Carrie must put aside memories of her sister’s death to help a young murder witness lead the police to a killer.

(Originally Aired: Tuesday Sep 27, 2011)

Animal expert Jack Hanna; actress Anna Faris.

(Originally Aired: Tuesday Sep 27, 2011)

(Originally Aired: Tuesday Sep 27, 2011)

The couple with the lowest score face elimination; performances by Demi Lovato and The Script.

(Originally Aired: Tuesday Sep 27, 2011)

Many suspects emerge after a rich tycoon’s new, young wife is shot during a deer hunt; Kate and Megan’s relationship takes a turn for the worse.

(Originally Aired: Tuesday Sep 27, 2011)

Bill Ritter, Sade Baderinwa.

In-depth reporting on news and events with Cynthia McFadden, Terry Moran and Bill Weir.

The teams learn they will only have access to the gym two hours a day; Dr. Huizenga meets with the players about their health; one player sees surprising results at weigh-in.

(Originally Aired: Tuesday Sep 27, 2011)

Sarah tries to remain a part of Amber’s life, who is enjoying her independence; after Jasmine starts dating, Crosby wonders how she will fit into the Braverman family; Zeek shares relationship advice with Drew.

(Originally Aired: Tuesday Sep 27, 2011)

Chuck Scarborough and Sue Simmons.

Actress Lauren Graham; Seth MacFarlane performs.

(Originally Aired: Tuesday Sep 27, 2011)

Shelby Corcoran shows up at McKinley; Mr. Schuester starts a boot camp for some New Directions members.

(Originally Aired: Tuesday Sep 27, 2011)

Nick and Schmidt talk Jess into getting her stuff out of her ex’s apartment; Jess meets her roommate Winston, a basketball player who has just returned from Latvia.

(Originally Aired: Tuesday Sep 27, 2011)

Burt lets the family in on some information he learned about Sabrina; the Chance family meets Sabrina’s father.

(Originally Aired: Tuesday Sep 27, 2011)

Anastos, Alexander, Gregory and Salzberg.

Sheldon tries to make peace when Leonard and Penny get into an argument.

(Originally Aired: Monday Nov 09, 2009)

Jack bumps Jenna’s scheduled appearance on ”Late Night With Conan O’Brien” by booking new star Tracy.

(Originally Aired: Thursday Dec 07, 2006)

Naomi gets help taking revenge against Holly; Annie struggles to find money for sorority dues; Adrianna reveals a secret that changes Liam’s view of her; Ivy lashes out at her friends; Navid deals with his uncle.

(Originally Aired: Tuesday Sep 27, 2011)

Things get tense between Bridget and Andrew after she uncovers some information about him; Agent Machado looks for Bridget; Henry and Gemma argue over an investment.

(Originally Aired: Tuesday Sep 27, 2011)

Jerry thinks his off-the-cuff remark killed a woman.

(Originally Aired: Wednesday Jan 30, 1991)

Jerry’s favorite soup vendor won’t serve his new girlfriend (Alexandra Wentworth).

(Originally Aired: Thursday Nov 02, 1995)

Production begins on Liz’s new talk show, ”Dealbreakers”; dealing with pressure from Devin, Jack tries to make ”Dealbreakers” a success; Tracy tries to prove his commitment to his wife.

(Originally Aired: Thursday Dec 03, 2009)

The gang tries to convince Ted that Tiffany (Carrie Underwood) is stringing him along.

(Originally Aired: Monday Mar 01, 2010)

SAMCRO makes a run to set up a new business venture; Gemma makes a new ally in Charming.

(Originally Aired: Tuesday Sep 27, 2011)

SAMCRO makes a run to set up a new business venture; Gemma makes a new ally in Charming.

(Originally Aired: Tuesday Sep 27, 2011)

The bakers cakes are displayed at the red carpet celebration for the Kentucky Derby.

(Originally Aired: Tuesday Jun 14, 2011)

Two proteins in the appetizer basket; chaos in the entree round; mushroom dishes.

(Originally Aired: Tuesday Jun 28, 2011)

One two-time champ can claim the prize once again; catfish in the first basket; cherry soda.

(Originally Aired: Tuesday Sep 27, 2011)

The chefs lose confidence during the appetizer round; creativity is brought out in the entree round with mystery ingredients including coconut.

(Originally Aired: Tuesday Jul 27, 2010)

Mike and Frank finally let Danielle go on a pick; Frank agrees to fill in for Danielle at the shop while she hits the road; Danielle tracks down a century-old hotel that’s been vacant for years.

(Originally Aired: Monday Dec 13, 2010)

The curators of North Carolina’s NASCAR Hall of Fame have asked Mike and Frank to find relics that tell the history of auto racing.

(Originally Aired: Monday Apr 11, 2011)

The contestants try skipping arrows off a ramp to hit a target; two teammates almost come to blows during a dispute.

(Originally Aired: Tuesday Sep 27, 2011)

The contestants try skipping arrows off a ramp to hit a target; two teammates almost come to blows during a dispute.

(Originally Aired: Tuesday Sep 27, 2011)

Daffy accuses the neighbors of stealing his newspaper and sets out to catch them by setting an elaborate trap.

(Originally Aired: Tuesday Aug 23, 2011)

Gumball wants to win back his father by winning a race; Gumball wants to know Darwin’s secret.

(Originally Aired: Tuesday Sep 27, 2011)

A judge assigns Buck to community service with Habitat for Humanity; Peggy and Dee Dee plan a Christmas dinner at the Habitat house.

(Originally Aired: Sunday Dec 16, 2001)

Hank has a recurring dream in which he is barbecuing with a naked Nancy, a problem Peg tries to cure by taking him to a nude beach to grill.

(Originally Aired: Sunday May 05, 2002)

Roger suggests that Stan hold a telethon to raise funds after the CIA’s budget gets cut; when Stan takes credit for the idea, Roger is infuriated.

(Originally Aired: Sunday Nov 30, 2008)

Steve feels better about having to wear a back brace after Stan admits he has worn a toupee since he was Steve’s age; Roger and Francine try to sneak in an unpaid guest on their spa retreat for two.

(Originally Aired: Sunday Jan 25, 2009)

When Chris and Meg trade roles with their parents, Chris works at the brewery and Meg runs the house.

(Originally Aired: Sunday Mar 20, 2011)

Brian and Stewie go back in time to try and stop Bertram (Wallace Shawn) from killing Leonardo da Vinci.

(Originally Aired: Sunday May 08, 2011)

Matty asks Jenna on a real date; Jenna questions everything about her romance.

(Originally Aired: Tuesday Sep 20, 2011)

Amber and Gary try to get the no-contact order lifted; Maci wants to cut Ryan out of her life; Farrah makes an unexpected choice; Butch moves in with Catelynn and Tyler.

(Originally Aired: Tuesday Sep 20, 2011)

The mothers discuss struggles and family strife.

(Originally Aired: Tuesday Sep 27, 2011)

Jenna wants Matty to ask her to the winter formal; Sadie taints Jenna’s nomination; Tamara’s love life takes a surprising turn.

(Originally Aired: Tuesday Sep 27, 2011)

The guys go undercover at a high school.

(Originally Aired: Tuesday Sep 20, 2011)

The Look at That Horse Guy gets his web redemption; Tosh shares his I Hate video; the fans share their summer plans over Twitter.

(Originally Aired: Wednesday Jun 09, 2010)

Daniel gets roasted and his fans help him write a love letter, board breaker stops by for a redemption.

(Originally Aired: Tuesday Mar 15, 2011)

Daniel hosts a tweet-and-greet; Daniel invades Arizona State University.

(Originally Aired: Tuesday Sep 20, 2011)

The bumbling surfer; the ultimate motor boat; a new phone app.

(Originally Aired: Tuesday Sep 27, 2011)

The guys try to be sober for a week after a hard night of partying.

(Originally Aired: Tuesday Sep 27, 2011)

Actor Seth Rogen.

(Originally Aired: Tuesday Sep 27, 2011)

Melinda Gates co-owner of Bill and Melinda Gates Foundation.

(Originally Aired: Tuesday Sep 27, 2011)