The Big Bang Theory: Season 8 Episode 20: The Fortification Implementation
Starring: Johnny Galecki, Jim Parsons, Kaley Cuoco Sweeting, Simon Helberg, Kunal Nayyar, Mayim Bialik, Melissa Rauch
Length: 20 minutes
On Air Date: 9 Apr 2015
The Big Bang Theory: S08E20 Description: Howard meets the half-brother he never knew he had. Penny is invited to appear on Wil Wheaton’s podcast.