Adult swim and anything to do with the history channel or discovery. Next on the history channel: "the history of zombies." I smell a Halloween special.
i would try to get the commercial on the scifi, alot of zombie movies get played on that station. so if you offer the viewers a solution to the zombie problem and ice cream...they may go for it. also as stated before me, adult swim would air it. if they air aqua teen hunger force, which is a show of great quality, then they would air such a commercial.