Raj takes the microphone as he, Wolowitz and Sheldon play some Red Hot Chili Peppers in the video game, Rock Band. Raj kind of sounds like a dying cat but we loved his performance.
Sheldon and Mrs. Hofstadter (Christine Baranski) decided to perform a little duet in Rock Band to some Journey. Watching them sing and dance was priceless.
Mrs. Hofstadter (guest star Christine Baranski) meets Penny on the way up to Leonard's apartment and has no problem analyzing her and figuring out all her father issues.
A picture of Sheldon and Leonard's mother (Christine Baranski) looking over some brain scans of Sheldon's. The two of them get along frighteningly well.
Sheldon may have more neuroses than anyone on the planet, but some how this nerd has no problem doing one of the most awkward things... lending a friend money.
Leonard uses the board to attempt to find the perfect combination of movie theater and restaurant based on start times and Sheldon's idiotic requirements.
Sheldon: I'll have a diet Coke. Penny: Can you please order a cocktail? I need to practice mixing drinks. Sheldon: Fine... I'll have a virgin Cuba Libre. Penny: That's... rum and Coke without the rum. Sheldon: Yes, and would you make it diet?
