Jon Stewart Spends Half His Show Skewering Glenn Beck

05/18/2010 05:12 am ET | Updated May 25, 2011

Jon Stewart gets a lot of material from Glenn Beck, but the Daily Show host went all-in on Thursday night with a whopping 15-minute parody of the Fox News host.

Words don't really do it justice, unless they're on a chalkboard, so just enjoy the video ...