TV Guide TLC Friday

Amy is shocked at a revelation from Sheldon after she buys him a new laptop, while Raj sells out Leonard and Howard after they lie to their wives in order to attend an early screening of a movie. Comedy, starring Johnny Galecki, Jim Parsons and Kaley Cuoco

On a weekend cabin trip with Penny and Amy, Sheldon spills one of Leonard's secrets, while Howard and Bernadette must draw a line when Raj goes overboard with pregnancy gifts. Comedy, starring Johnny Galecki, Jim Parsons and Kaley Cuoco

Leonard and Sheldon disagree over whether to continue holding their regular Roommate Agreement meetings, with Leonard suggesting they are no longer required, while Sheldon believes they are still essential. As the pair's squabble quickly escalates into a full-blown argument, the rest of their friends turn up for a planned Game of Thrones viewing party, and end up taking sides in the dispute - resulting in two warring factions taking up residence in 4A and 4B. Comedy, starring Johnny Galecki and Jim Parsons

The gang goes to a bar and runs into Penny's old boyfriend Zack, while Bernadette is left to spend the evening with Sheldon when she cannot go wine tasting with the others. Elsewhere, things do not go to plan when Raj introduces his new girlfriend, Claire. Comedy, starring Johnny Galecki, Jim Parsons and Kaley Cuoco

Sheldon discovers a surprise screening of The Avengers is scheduled at a local cinema, complete with a Q&A session with the film's director, Joss Whedon. However, the event just happens to clash with time he'd planned to spend with Amy, so he decides to pay Stuart to be his subtitute for the afternoon while he and the other boys immerse themselves in Marvel superheroics. Meanwhile, Leonard's mother Beverly arrives in town for an extended visit, and Penny takes the opportunity to bond with her new mother-in-law - and to make up for not inviting her to the wedding. Comedy, guest starring Christine Baranski

Conflict arises when Leonard's newly divorced parents and Sheldon's devoutly religious mother are all in town at the same time. And when Howard and Raj are contacted about the guidance system they've developed, they assume that the government is out to get them. Laurie Metcalf, Christine Baranski and Judd Hirsch guest star