9x15 The Valentino Submergence
First Aired: Feb. 11, 2016 on CBS
Summary: 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.
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Guest Stars[no credits found]