With the third and final season of "Getting On" -- the dark comedy set in a hospital's extended care unit -- preparing to debut on HBO, it's time to take a look back at Season 2 to properly prepare.

Above, take a look at the Zap2it's exclusive sneak peek of the Season 2 gag reel, which can be found on the Blu-ray, DVD and Digital HD release of "Getting On." In the quick behind-the-scenes look at the series, Dr. James (Laurie Metcalf), Didi (Niecy Nash) and Dawn (Alex Borstein) run through several takes of a scene until they get to the perfect fart joke.

When it comes to comedy, sometimes there's nothing funnier than someone passing a little gas. In this care its Borstein and she knows exactly how to react. "It was kinda' eggy, huh?" she asks in one take. In another she reveals, "I've been waiting six hours to do that."

"Getting On" Season is available on Blu-ray, DVD and Digital HD Tuesday (Nov. 3). Season 3 of the the HBO series premieres Sunday, Nov. 8 at 10 p.m. ET/PT.

Posted by:Chris E. Hayner

Chris E. Hayner is equal parts nerd, crazy person and coffee. He watches too much TV, knows more about pro wrestling than you do and remembers every single show from the TGIF lineup. You may have seen him as a pro-shark protester in "Sharknado 3." His eventual memoir will be called "You're Wrong, Here's Why..." TV words to live by: "I'm a firm believer that sometimes it's right to do the wrong thing."