TBS HD (Pacific)

Leonard is horrified when his mother (Christine Baranski) visits.

Sheldon and Koothrappali attend a university mixer; Leonard discovers that Penny believes in psychics.

Michael anticipates going to New York for the company's Website launch party; Dwight tries to sell more paper in one day than the Website does.

Michael tries to combat his growing debt by asking employees for loans; Jim and Pam spend a night at Dwight's family farm.

Michael tries to combat his growing debt by asking employees for loans; Jim and Pam spend a night at Dwight's family farm.

Michael seizes the opportunity to exhibit his creativity when the Scranton branch must participate in a company ad; Dwight explores an online world.

Michael fights back when Karen tries to woo Stanley away from Scranton; a Finer Things Club further disturbs Dunder Mifflin's calm.

When Ryan excludes him from a wilderness retreat, Michael goes into the woods for his own survival adventure; Jim tries to revolutionize the office birthday party.

Jan sues Dunder Mifflin, and Michael is deposed as a witness; Kelly trash-talks Pam after Darryl beats Jim at ping-pong.

Pam and Jim run out of excuses and must go to Jan and Michael's house for dinner; when Dwight learns that Angela and Andy are also invited, jealousy gets the best of him.

A model in an office-supply catalog makes Michael feel things; to win back Dunder-Mifflin's parking spaces, Kevin and Andy oppose bosses of five businesses.

Michael and Dwight decide to surprise Ryan in New York; Scranton staffers must work on a Saturday for Ryan's Website project.

Michael tries to give Stanley an attitude adjustment after Stanley snaps at him; Dwight decides to buy Andy's car; after spending the night at Jim's, Pam deals with an unexpected inconvenience.

Jim hits the golf course with Andy and Kevin in hope of landing a huge client; Michael sets up a booth at a job fair at Pam's alma mater to hire a summer intern.

Michael demands Toby's goodbye party at Dunder Mifflin be a huge celebration; Dwight and Meredith haze Holly (Amy Ryan), the new human resources person.

Steve finds himself the object of romantic attention; Carl considers wearing a toupee.

A disappointing loss at the science fair sends Sheldon's life in a new direction.

Sheldon is bullied by an unlikely character; Mary and George disagree on how to handle the situation.

Mary bans Sheldon from reading a mature comic book; Sheldon decides it's time to stop living under Mary's thumb.

When Sheldon is no longer academically challenged at Medford High, he audits a college class taught by Dr. John Sturgis.

A battle erupts in the neighborhood between the Coopers and the Sparks when Sheldon is terrorized by the Sparks' new dog.

Sheldon keeps tabs on Meemaw's budding relationship with Dr. Sturgis; George Sr. and Mary attempt to bond with their other children.

When Carol gives birth, Ross and Susan almost miss the event; Joey befriends an unmarried pregnant woman.

Rachel discovers Ross' feelings for her when he goes out of town on a business trip.

Rachel decides to look up her former boyfriend (Cosimo Fusco) when she is distraught over Ross' new girlfriend (Lauren Tom).

While tending his son, Ross expresses his displeasure when Phoebe tastes Carol's breast milk to check the temperature.

Monica and Rachel's grumpy downstairs neighbor (Larry Hankin) dies and leaves all his belongings to the girls.

The group is amazed when Phoebe marries a Canadian ice dancer (Steve Zahn) to help him get his green card.

The group's plans of throwing a birthday party are marred when money becomes an issue; Monica gets a promotion; Chandler sets a woman up to get a date with her, but a case of mistaken identities means that he discovers what she really thought of him.

Joey and Chandler decide to baby-sit and use Ben as a way to pick up women; Phoebe loses her job singing at Central Perk.

A drunken Rachel leaves a phone message for Ross that may change their relationship; Chandler regrets asking Monica to help him lose weight.

Rachel sees Ross' list comparing her pros and cons to Julie's (Lauren Tom).

Phoebe, hoping for a Christmas family reunion, travels to upstate New York in search of her biological father.

After deciding to give up acting, Joey is offered a role in a soap opera; Rachel dates a guy named Russ, who is amazingly similar to Ross.

Major League Baseball pregame analysis.

The Philadelphia Phillies host the Chicago Cubs at Citizens Bank Park for game two of this regular season series. Philadelphia pitcher Aaron Nola takes the mound to face Chicago pitcher Colin Rea as the East and Central divisions collide.

Major League Baseball postgame interviews, analysis and highlights.

After their apartment is robbed, Leonard and Sheldon turn to their friends to create a state-of-the-art security system.

Sheldon tries to figure out the answer to a physics problem by working with Penny.

Leonard must choose who to bring with him when he goes to see the Large Hadron Collider on Valentine's Day.

Sheldon ends up in traffic court after getting a ticket because of Penny.

Michael demands Toby's goodbye party at Dunder Mifflin be a huge celebration; Dwight and Meredith haze Holly (Amy Ryan), the new human resources person.

Staffers in the Scranton branch of Dunder Mifflin become obsessed with their weight in the wake of corporate weight-loss initiatives; Michael pursues a friendship with Holly; Jim misses Pam, who is away at art school.