TLC Fortification Implementation. Sheldon and Amy reach a crossroad, a man claiming to be Wolowitz's half-brother shows up, and Penny and Leonard argue live on Wil Wheaton's podcast. S8, Ep20 2026-05-23 Communication Deterioration. NASA asks Raj to craft a message for aliens in the event of contact, and Penny must choose between an audition or her job in pharmaceutical sales. S8, Ep21 2026-05-23 The Graduation Transmission. Wolowitz and Sheldon can't get a drone to fly, Leonard nearly misses giving a commencement address, and Raj pits his parents against each other. S8, Ep22 2026-05-23 The Maternal Combustion. Leonard and Sheldon's mothers come to town to celebrate their sons getting an award, but the opinionated women engage in an altercation over religion. S8, Ep23 2026-05-23 The Commitment Determination. Leonard and Penny are pressured to set a wedding date by Sheldon, whose relationship with Amy has taken an interesting turn. S8, Ep24 2026-05-23 The Matrimonial Momentum. Penny has a problem dealing with Leonard's confession about having kissed another woman, while Sheldon is confused about Amy calling a time out. S9, Ep1 2026-05-23 The Separation Oscillation. To ease Penny's mind, Leonard pays a visit to the woman he kissed during his expedition to the North Sea. Sheldon's breakup leads him to retaliate. S9, Ep2 2026-05-23 The Bachelor Party Corrosion. The guys surprise Leonard with a belated bachelor-party weekend in Mexico, but their plans hit a bump in the road when they get a flat tire. S9, Ep3 2026-05-23 The 2003 Approximation. Sheldon reverts to 2003 when he learns that Leonard and Penny are moving in together, while Howard and Raj form a band to play at the comic store. S9, Ep4 2026-05-23 The Perspiration Implementation. When Barry Kripke gives the guys fencing lessons, he makes a point of letting Sheldon know he's interested in dating Amy. S9, Ep5 2026-05-23 The Helium Insufficiency. A helium shortage leads Sheldon and Leonard to do business with a dealer in the black market to acquire some of the element for an experiment. S9, Ep6 2026-05-23 The Spock Resonance. Sheldon's interview for a 'Star Trek' documentary focusing on Spock turns up a shocking revelation about his breakup with Amy. S9, Ep7 2026-05-24