Exclusive - Go Inside The 'Big' Hallway

One of the prime locations featured on CBS' The Big Bang Theory is the hallway that separates Penny from Leonard and Sheldon. But did you know the now-iconic divider, as well as the always out of service elevator, were not originally part of the show?

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That's just one of the secrets gleamed from the bonus features on BBT's newly-released season five DVD set, which also includes a gag reel and three never-before-seen featurettes!

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Check out ETonline's exclusive sneak peek and click here to buy your copy!