Everything you need to know about Jon Stewart hosting WWE's SummerSlam

The host turns heel: Jon Stewart gets deep into the action at WWE SummerSlam 2015 in New York City.Jon Stewart was back on TV hosting Sunday night, but not like you've ever seen him before. Here's everything you need to know about Stewart's stint at WWE's SummerSlam pay-per-view.

1. Stewart is a lifelong wrestling fan.

As surprising as it may be for some that Jon Stewart would make his first post-retirement job hosting an event for WWE, it actually makes a lot of sense given the comedian’s longtime affinity for professional wrestling. Stewart had several wrestlers as guests on “The Daily Show,” even before his spring feud with Seth Rollins. (More on Rollins to come.) The fandom is clearly…