Tonight’s episode of The Big Bang Theory is the SEASON FINALE, Episode 23: The Lunar Excitation. In this episode, ” While Penny worries that dating Leonard has ruined her for normal guys, Wolowitz and Koothrappali search for Sheldon’s perfect match online.” This episode guest stars Mayim Bialik.
Gallery Link
- 3.23 The Lunar Exitation Episode Stills

















