Sierra Mist had the best of its commercials early in the pre-game show (probably around 3pm Eastern). A naked guy, dripping in sweat, walks down the stairs (his dog's head conveniently blocking the view), walks over to the freezer, opens it up (fog rolling around his body). Reaches in, and comes out with a pair of frozen-hard boxer short. He steps into them, and in one swift motion, pulls them up and kind of does an "eeeeee!" high-pitched groan. Voiceover says "Yeah, it's kinda like that."
It's really funny. I hope they play that one more. I liked it a LOT better than the fire hydrant one.