TV March Madness: 'Parks and Rec' vs. 'How I Met Your Mother' in On-Air Comedy Sweet Sixteen

It's the Sweet Sixteen of Zap2it's TV Show March Madness tournament and the On-Air Comedy region has three high seeds and upset-maker "How I Met Your Mother" battling to face off in the Elite Eight.

The voting will remain open until Tuesday, March 27 at midnight ET, so be sure to get your votes in early and tell your friends. Also be sure to to vote for the On-Air Dramas, the Off-Air Dramas and the Off-Air Comedies in our quest to find the ultimate TV Show.

May the best show win! Voting below.