The Big Bang Theory Episode 2.03 The Barbarian Sublimation

Penny feels frustrated by her failure at everything in her life. She becomes obsessed with playing an online game called "The Age of Conan," and Sheldon tries to help with her addiction by giving her tips on how to get to the next level. She calls him at work for help. When she crosses the boundary by going into Sheldon's room in the middle of the night, he's had enough. Leonard tries to get through to her but fails. Sheldon sets up an online dating profile for her and brings home a guy for her to meet that's supposed to be her perfect match. Penny is so far into the game that she doesn't even notice. Only when Wolowitz propositions her does she snap out of it.