866.61 Views
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 Raj invites his ex-girlfriends over to give him dating advice.
First Air Date : Sep 24, 2007
Last Air date : May 16, 2019
Episode : 279 Episode
Season : 12 Season
Runtime: 22:14 minutes
Studio: CBS
Country: United States of America