Even I learned something new about one of my favorite shows all time.
The show wasn't filmed in NYC
Jim Parsons was originally up for the role of Barney
Jennifer Love Hewitt turned down the role of Robin
Britney Spears was brought on in 2008 to save the show from ratings and cancellation
The Bro Code by Barney Stinson actually exists.
Here's more about the show you may not have known