Big Bang's Sheldon & Big Brother's Steve Are Basically Long Lost Brothers 

9/9

They are mesmerized by science.

Sheldon's got his eye on a giant game of Jenga, and Steve's entranced by a structure he built.

Get these smart cookies in front of anything science-related and they go berzerk, which is a big reason why we love 'em!

Watch Big Brother on CBS.
Watch The Big Bang Theory on CBS.