In the first season finale, George Sr. has a heart attack, and Maeby is jealous when George Michael likes another girl. Meanwhile, Lindsay decides to leave Tobias until a book…

Booth and Brennan investigate a mall Santa named Kris Kringle who was found dead by two elves. A series of clues makes the murdered mall Santa seem like he’s the…

A birth mother considers having Walden and Alan adopt her baby.

Sheldon beta-tests an MIT invention after hearing it can help him read people’s emotions. Also, Leonard can’t hide his feelings when Penny announces her brother is coming to town, and…

The gang goes to a wine bar and runs into Penny’s old boyfriend, Zack. Also, Bernadette gets stuck spending the evening with Sheldon when she can’t go wine tasting with…

Leonard, Sheldon, and Wolowitz run into problems when they file for a patent for their infinite persistence gyroscope. Also, Penny, Amy and Bernadette give Koothrappali dating advice when Emily reaches…

Sheldon and Amy host a live Valentine’s Day episode of Fun with Flags, Leonard and Penny grapple with getting older, Howard and Bernadette find a surprise in their hot tub…

Meemaw meets Amy, but it isn’t all roses. Meemaw seems to have an axe to grind with her. Sheldon comes to Amy’s defense, but not before Meemaw lets a little…

Lucifer and Chloe are tasked with solving the murder of a prominent restaurateur. When they meet his son, they suspect he played a part in the death. Meanwhile, Chloe’s mom…

Constance enlists Violet’s assistance with Tate. Ben helps a new patient confront his fears.

Tate comes face to face with his past, and Ben and Vivien are haunted by a new houseguest before Halloween night comes to an end.

The line between the living and the dead blurs on Halloween. Two of the house’s previous residents give the Harmons decorating advice.