Who would have thought that the little show introduced in 2007 with a horribly awkward Hi, Hi, Hi, Hi between Penny and Leonard as an attempted replacement for Friends would still be around now? After eight hilarious seasons, the show continues to pull in millions of viewers thanks to endless running gags and genius writing that combines glorious social awkwardness, scientific silliness and good old fashioned relationship intrigue. And thanks to a cast of great characters (who seriously rival Friends now in terms of fan love), that shows no sign of flagging just yet.
Unfortunately all good things have to end, but when that fateful day comes, the show will have offered enough memorable "Bazingas" and "I'm not insane, my mother had me testeds" to keep fans endlessly quoting well beyond the end...
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20. "One Cries Because One Is Sad. For Example, I Cry Because Others Are Stupid, And That Makes Me Sad" - Sheldon
Season 3Sheldon: Why are you crying? Penny: Because Im stupid! Sheldon: Thats no reason to cry. One cries because one is sad. For example, I cry because others are stupid, and that makes me sad.