A new sneak peak clip has been released for tonights Valentine’s Day episode of The Big Bang Theory, along with a hilarious featurette taking viewers behind-the-scenes of “The Tangible Affection Proof”. Moderate spoilers ahead.

Tonight’s much-hyped episode of The Big Bang Theory, “The Tangible Affection Proof”, will take the entire geeky gang through what looks like a roller coaster of a Valentine’s Day. The episode promo has already given us a glimpse at Leonard and Sheldon’s VDay plans, so check out the sneak peak below for a glimpse at how Howard and Bernadette will celebrate (is that the right word?) their first Valentine as a married couple.

Oh dear; we hope marriage hasn’t dimmed the Rostenkowski-Wolowitz flame. (And Howard? Do the laundry, buddy.)

In addition to the sneak peak, ETOnline went behind the scenes of The Big Bang Theory to chat with the cast about the upcoming Valentine’s Day episode. Check out the featurette right here:

So we can expect a “simple and altruistic” Valentine’s day from Sheldon and Amy, ninja-romance for Leonard and Penny, a funny-but-probably-doomed go at Cupid’s bullseye from Raj and… well, we already know what to expect from Howard and Bernadette. We also learn that “The Tangible Affection Proof” is Johnny Galecki’s favorite episode of season 6 so far, which is exciting news given that The Big Bang Theory has been extremely creatively strong this season.

CBS’s official summary of “The Tangible Affection Proof” says:

While the guys try to give their significant others the perfect Valentine’s Day, Raj and Stuart throw a “lonely people” party at the comic book store.

Kate Micucci will make her first appearance as Lucy, a potential love… something, for perpetually lonely Raj. Dare we get our hopes up?

Tune in for the love and laughter tonight at 8 p.m. on CBS.

How will Valentine’s Day go down on ‘The Big Bang Theory’?