The Tangerine Factor

Summary
After another messy break up Penny asks Leonard why she can’t go out with a nice honest guy. So he asks her out. She says yes but they both feel nervous about it and go to Sheldon for advice. He has his own problems though as he is learning Mandarin in order to properly accuse his local Chinese Restaurant of serving his orange chicken instead of tangerine chicken.

Critics
"I believe that this final episode is the seasons best. It is not the funniest but it does engage the emotions of the viewer more than any previous effort." - The TV Critic's Review