The Big Bang Theory is a sitcom on CBS that's about some seriously funny geniuses, Leonard (Johnny Gelecki) and Sheldon (Jim Parsons).
The two physicists from Caltech are not only colleagues but also best friends and roommates. When a beautiful waitress, Penny, breaks up with her boyfriend of four years and moves in across the hall, both sides have something to learn from each other.
Eventually, of course, the series cast expanded to include Penny full-time, along with Amy, Bernadette and many others.
This is the highest-rated sitcom on television by a very wide margin. We cover The Big Bang Theory in depth at TV Fanatic, via weekly reviews, photos, quotes, recaps, spoilers and a lot more.