'Big Bang Theory' Bonus: Howard and Bernadette Go to Infinity -- and Beyond (Exclusive Video)

After starting their marriage separated by space, Howard and Bernadette had a happy first year as newlyweds on the recently concluded sixth season of CBS' The Big Bang Theory.

After Bernadette's (Melissa Rauch) "Rocket Man" returned home to Earth, the couple navigated a crop of thorny issues including where to live, children and a long-lost letter from Howard's (Simon Helberg) father.

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In a clip featured on the Big Bang Theory's sixth season DVD/Blu-ray combo, Rauch and Helberg break down the relationship of their on-screen counterparts.

"You see the love between them," Rauch says, pointing to the episode in which Howard finds -- and subsequently burns -- a letter from the father who abandoned him at a young age. "It's such a fantastic example of a true marriage."

The Big Bang Theory's sixth season is out Sept. 10 on DVD and Blu-ray. Special features include interviews with astronauts (and Big Bang guest stars) Mike Massimino and Buzz Aldrin as they discuss Howard's trip to the International Space Station, a featurette with the cast as they surprise astronaut Joe Acaba with a live Skype call, highlights from PaleyFest 2013 as well as deleted scenes and a gag reel.

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Check out the clip, exclusive to THR, above and hit the comments with what you're looking forward to see for the couple when season seven returns.

E-mail: Lesley.Goldberg@THR.com
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