"Frozen" is the eleventh episode of the fourth season of House and the eighty-first episode overall. It aired on February 3, 2008, following Super Bowl XLII; it attracted slightly more than 29 million viewers, making it the highest rated House episode of the entire series. It was ranked third for the week, tied with that week's episode of American Idol (also on Fox) and outranked only by the Super Bowl game and the Super Bowl post-game show.