In space, you can only hear one person scream. Isn't that right, Howard?

CBS has released the first promo for the September 27 season premiere of The Big Bang Theory Season 6 and it features:

• A loud phone call between mother and out-of-this-world son;
• Some upper lip shaving for Amy.
• And an admission by Sheldon that he needs Amy. But not for the reason you might think. Or she might hope.

Check out photos from "The Date Night Variable" now and then press Play:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.