How long does it take to burn off your entire Thanksgiving meal?

You're sitting on the couch, pants unbuttoned and regret eating that second helping of turkey.  How long do you have to work out to burn off the entire meal and get back to your pre-Thanksgiving self?  According to the USA Today, if you consumed 1,610 calories (560 for the main course, 485 for side dishes, 240 for drinks, and 325 for dessert) it's going to take a lot of physical exertion to work all that off! - MT