The Big Bang Theory (season 4) - Wikipedia

Glee (season 4) - Wikipedia

The Decoupling Fluctuation, The Big Bang Theory Wiki

The 21-Second Excitation, The Big Bang Theory Wiki

Brian Thomas Smith - Wikipedia

April Bowlby - Wikipedia

Penny (The Big Bang Theory) - Wikipedia

Eliza Dushku - Wikipedia

The Big Bang Theory (TV Series 2007–2019) - Episode list - IMDb

Brian Posehn - Wikiwand

Grimm (season 4) - Wikipedia

Supergirl (season 4) - Wikipedia

The Big Bang Theory, The Big Bang Theory Wiki

Wil Wheaton, The Big Bang Theory Wiki

Revenge (season 4) - Wikipedia