The cast learned how to play the instruments their character was said to have known.
Jim Parsons learned the theremin Johnny Galecki learned the cello Mayim Bialik learned the harp
The scene where Penny reveals she loves Leonard was shot in one take.
Melissa Rauch came up with Bernadette’s voice by mimicking her real life mother.
Jim Parsons is responsible for
coming up with Sheldon’s laugh and smile. The writers left it up to him
writing in the script “unpleasant smile” trusting Jim to come up with
the ideal characteristic.
“Bazinga” has officially been dubbed a species of bee as a way to honor Sheldon Cooper.
The cast and crew surprised the
executive producers with a flash mob at the end of a live taping. The
dance was choreographed by Kaley Cuoco’s sister.
Penny’s last name has yet to be said and Kaley is vigilant about it not being revealed by accident.
Actress Kate Micucci originally
auditioned for the role of Amy which eventually went to Mayium Bialik.
However she impressed the creators so much they called her to play the
character of Lucy.
“Soft Kitty, Warm Kitty” came
from a pre school teacher who taught the daughter of one of the show’s
producers. The song originated from Australia.
The staircase featured in the
series is actually just one set of stairs. The actors and crew have to
reset/ redress the scene to make it look as if the characters are
climbing more than one flight.