BBT Unsolved Mysteries
1) Why didn't Sheldon do his knocking thing in season 1?
2) What is Penny's last name?
3) What happened to Dr. Stephanie?
4) What happened to Sheldon's assistant Alex?
5) Why did Emily and Claire both break up with Raj?
6) Why did Bernadette's voice get a higher pitch after we first saw her?
Anything else?
"Insults are the arguments employed by those who are in the wrong." J.J. Rousseau