The Big Bang Theory Season 4 Episode 14 : The Thespian Catalyst

Sheldon guest lectures at the university, but his teaching style is unfunny, boring, dismissive, and altogether intolerable, leading to numerous blogs and Tweets about how awful he is – something that amuses the rest of the gang but devastates Sheldon. Amy tells Sheldon that he needs to improve his communications skills, and recommends he take acting lessons. He convinces (or more accurately, bribes) Penny to give him acting lessons and behaves i...