NO PURCHASE NECESSARY. Void where prohibited. Legal residents of the 50 US or DC who are 18 or older. Begins May 17, 2018 at 10:00 A.M. PT and ends June 29, 2018 at 12:00 P.M. PT. Limit 1 entry per person per day. To enter, and for Official Rules, odds, and prize details, visit https://www.nbc.com/streambigsweeps. Sponsors: NBCUniversal Media, LLC and NBC Entertainment, a division of NBC West, LLC.