Big Bang Theory recap: Season 11, Episode 11

Howard and Raj remain in a fight. Sheldon prepares for Amy's birthday.

The Big Bang Theory, Season 1 Episode 11

The Big Bang Theory' Recap: Season 9, Episode 200 — Sheldon's Birthday – TVLine

Big Bang Theory recap: Season 11, Episode 8

The Big Bang Theory (season 8) - Wikipedia

The Big Bang Theory Season 11 - watch episodes streaming online

The Big Bang Theory Season 1 Episode 11 - TV Fanatic

The Big Bang Theory' Season 11, Episode 22 recap: Amy finds her wedding dress

Big Bang Theory recap: Season 11, Episode 2

The Big Bang Theory' Season 11 Episode 18 Recap: Penny Envisions a New Career

Big Bang Theory recap: Season 11, Episode 21

Big Bang Theory' premiere recap: Did Sheldon put a ring on it?

The Big Bang Theory' Season 11, Episode 16 recap: The gang welcomes its newest member