Also, find out which actor needed notecards to learn all the moves!
ET's breaking down the most-watched, and sometimes poorly received, TV finales of all time.
Briana Cuoco is currently developing her own line of activewear, out this year.
Lots of famous faces from pop culture and comics have dropped in on the beloved comedy's 12 seasons.
With 'The Big Bang Theory' coming to an end, let's take a look back at one of the most enduring relationships on and off screen.
Ahead of the sitcom's two-part series finale, ET takes a look at how the actress has evolved over 12 amazing seasons.
It was a night of BIG changes on 'The Big Bang Theory’s penultimate episode!
ET was on the set of 'The Big Bang Theory' with Galecki and his co-star, Kaley Cuoco
Check out how much your favorite actors are earning on the show!
The show's series finale airs on May 16.
ET was lucky enough to be on set before their big goodbye.
ET was on the set of the hit show as they filmed their first season.
After 12 seasons, the beloved comedy's series finale will air on May 16 at 8 p.m. on CBS.
