The Big Bang Theory Quiz: In Which Episode Did It Happen?

The Big Bang Theory Penny Sheldon Happy Kitty Soft Kitty
CBS

2. Sheldon Gets A Tune Stuck In His Head That He Can’t Quite Place, Despite His Eidetic Memory.

The Earworm Reverberation

The Opening Night Excitation
Contributor

Brian Uthar hasn't written a bio just yet, but if they had... it would appear here.