It's the nerd-tastic adventures of Geek-Man!!! What happens when आप give Sheldon coffee? He makes the amazing transformation into Geek-Man!!! Catch all of Geek-Man's adventures on 'The Big Bang Theory' Mondays on CBS!

+ the promo from How I Met Your Mother

Fixed!!!

The guys discuss plans for the future of their brains

Penny's attempt to see who is the smarter of the two fails miserably

A distraught Sheldon wants to help Lenard with his work