The press release notes only that it is a members-only bar in Kansas. Based on the interior shots from the preview video, I can't tell what bar it might be, but then again, I am not a member of any members-only bars, so I wouldn't know. (You can tell it's members-only because everybody in the place is sucking down cigs like it's the end of the world.)
Update: It's apparently KC's Neighborhood Bar and Grill, in Merriam.
What the preview does offer is two-and-a-half minutes of reality-TV absurdity, including Taffer solemnly telling fellow "bar experts" that a bartender's number one job is to keep customers safe (that's their number one job?); old hippies kissing each other; a raccoon scampering across the bar top; and a close-up shot of raccoon feces. Watch below and tune in Sunday at 8 p.m. for the full episode.