Sheldon is upset when he realizes Leonard is the center of their group of friends.

(Originally Aired: Thursday Feb 24, 2011)

The cleaning lady interrupts Jeff’s day to himself; Adam tries figure out the cause of the twitching in his eye.

(Originally Aired: Thursday Feb 24, 2011)

The CSIs are on alert when two men initially pronounced dead come back to life.

(Originally Aired: Thursday Feb 24, 2011)

An antiques dealer is found dead in a museum and evidence points to a member of the CBI team.

(Originally Aired: Thursday Feb 24, 2011)

Families compete against each other as they face obstacles like the Snow Blower and Ski Lift.

(Originally Aired: Thursday Feb 24, 2011)

Meredith’s fertility treatments start affecting her eyesight; Mark talks to Callie and Arizona about his role as a father; April learns more about Dr. Stark (Peter MacNicol).

(Originally Aired: Thursday Feb 24, 2011)

Cooper and Charlotte try to forgive each other after revealing secrets in couples therapy; one of Sheldon’s patients claims to have multiple personality disorder; Naomi and Sam treat a pregnant teen who has Down syndrome.

(Originally Aired: Thursday Feb 24, 2011)

Greendale prepares for a visit from the vice president; Annie, Jeff, Leonard and Star Burns compete in the school’s first student election; Abed befriends a Secret Service agent (Eliza Coupe).

(Originally Aired: Thursday Feb 24, 2011)

Julia replaces injured Leigh in a doubles tennis tournament; Amy spoils Vance, Dave and Isabella’s fun.

(Originally Aired: Thursday Feb 24, 2011)

Dunder Mifflin traveling salesman Todd Packer comes to the office looking for a desk job; Andy fights Pam for a new computer.

(Originally Aired: Thursday Feb 24, 2011)

Ron and Leslie travel to Indianapolis to receive commendation for the upcoming Harvest Festival; April and Andy learn to have fun without spending money.

(Originally Aired: Thursday Feb 24, 2011)

Liz hires a new female comic to combat claims of misogyny at TGS; Jack tries to take out his competition for becoming successor to KableTown, who happens to be the CEO’s granddaughter.

(Originally Aired: Thursday Feb 24, 2011)

After an employee quits, Todd is excited to hire someone new; Gupta must find a way to pay back a loan shark.

(Originally Aired: Thursday Feb 24, 2011)

Twenty semifinalists are chosen.

(Originally Aired: Thursday Feb 24, 2011)

Elena, Stefan and Damon realize they can use Katherine’s knowledge to their advantage; Caroline finds a new way to get Matt’s attention; Alaric makes a confession to Jenna.

(Originally Aired: Thursday Feb 24, 2011)

Amanda sedates Alex and interrogates her; Nikita tries to help Alex but is double-crossed; Michael asks Birkhoff to investigate Alex.

(Originally Aired: Thursday Feb 24, 2011)

Surviving scorching deserts and freezing mountains in Arizona.

(Originally Aired: Thursday Feb 17, 2011)

Off the coast of Cape Wrath, Scotland, Bear fashions a wetsuit from the skin of a dead seal and faces a chilly swim; he has a close call with a deadly rock fall before making camp in an old boat.

(Originally Aired: Thursday Feb 24, 2011)

The group becomes desperate with no water and lost in the jungle at night.

(Originally Aired: Thursday Feb 24, 2011)

The team bands together to clear McGee’s name when he kills an undercover police officer while on assignment.

(Originally Aired: Tuesday Nov 29, 2005)

Hank believes his patient has been previously misdiagnosed; Divya and Raj take dance lessons.

(Originally Aired: Thursday Feb 24, 2011)

An inventor threatens suicide when his employer threatens his dismissal.

(Originally Aired: Thursday Feb 24, 2011)

Charlie tries to resist an attraction to his soon-to-be stepsister (Jenny McCarthy).

(Originally Aired: Monday Nov 19, 2007)

Alan seeks revenge when he discovers that Charlie stole his high-school girlfriend.

(Originally Aired: Monday Nov 26, 2007)

Charlie offers Alan pointers on how to break up with a woman.

(Originally Aired: Monday Mar 17, 2008)

Rose comes back from England and takes care of sick Charlie in a very strange way.

(Originally Aired: Monday Mar 24, 2008)

When members of Woodhouse’s famed WWI Royal Flying Corps squadron start dying mysteriously, Archer tries to track down the killer.

(Originally Aired: Thursday Feb 24, 2011)

Malory tries to make ISIS green; Archer and Lana head to the Louisiana bayous to prevent a dangerous eco-terrorist from bombing America’s largest natural gas pipeline.

(Originally Aired: Thursday Feb 17, 2011)

Ronnie and Sammi’s relationship ends and Ronnie gets destructive.

(Originally Aired: Thursday Feb 10, 2011)

Ronnie is a wreck when Sammi leaves; Ronnie feels alone in the house.

(Originally Aired: Thursday Feb 17, 2011)

Snooki’s hook-ups haunt her; Mike pranks Deena and Snooki; the guys ditch Mike.

(Originally Aired: Thursday Feb 24, 2011)