Useful Tips For Your NCAA Tournament Bracket Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Former astronaut Buzz Aldrin fills out his very first NCAA bracket ever at Space Center Houston as he goes head to head with Dick Vitale in the 2016 Allstate March Mayhem Challenge on March 15, 2016. ( Michael Stravato / Associated Press ) Produced by John Asante Hosted by Todd Zwillich Produced by PRI and WNYC