The Big Bang Theory: Season 9 Episode 15: The Valentino Submergence
Starring: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Alessandra Torresani, Creagen Dow, Shane Blades
Length: 19 minutes
On Air Date: 11 Feb 2016
The Big Bang Theory: S09E15 Description: Sheldon and Amy host a 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 Claire.