Comedy Central is planning a big marketing push centered around the theme of Ozzy Osbourne’s hit song “Crazy Train,” including radio tie-ins, double-decker buses in New York and Los Angeles decorated with the “Crazy Train” theme and new TV spots that feature Sheen in train-conductor mode. In addition, the free morning daily AM New York will feature train tracks on its cover and two inside pages the day the roast airs, while train track-themed wallscapes will adorn two streets in New York’s SoHo.