The Beta Test Initiation

The Beta Testing Initiation is the fourteenth episode of the fifth season of the CBS sitcom The Big Bang Theory. It airs on January 26th 2012.

Summary
Leonard and Penny deal with the idea of starting a relationship again and Raj finally finds a "woman" he can talk to without being drunk, in the form of Siri on his new iPhone. Meanwhile, Sheldon decides to start a YouTube series entitled "Sheldon Cooper presents Fun with Flags" with the help of Amy.

Title Reference
The title is derived from Leonard and Penny discussing the possibility of starting a relationship again, and Leonard's subsequent suggestion that they can start by treating the relationship like a beta test and give "bug reports" to each other, to maintain complete honesty between them.

Trivia

 * John Ross Bowie stars as Barry Kripke. Kripke was last seen in the episode The Toast Derivation.

Reference

 * Confirmation from a user (Musickat18) from IMDb, who posted a summary of the episode.