Season 6, Episode 1 - The Date Night Variable
Aired September 27, 2012
Amy is not impressed when Sheldon invites a lonely Raj along on their date night. Penny and Leonard's romantic evening together also gets interrupted after Amy sends Raj away. Meanwhile, Howard and his mother are caught in an argument, even as he's 220 miles above earth in the International Space Station.
Season 9, Episode 11 - The Opening Night Excitation
Aired December 17, 2015
After more than five years of dating, Sheldon and Amy spend their first night together. Also, Leonard, Wolowitz, and Koothrappali must decide who will take their extra Star Wars movie ticket.