The Big Bang Theory

The Valentino Submergence

Aired Feb 11, 2016 · 8:00 PM ET · 25 min

Sheldon and Amy host a live Valentine's Day episode of Fun with Flags, Leonard and Penny grapple with getting older, Howard and Bernadette find a surprise in their hot tub and Raj is torn between Emily and the cute girl he met at the Comic Bookstore.