Alison Sweeney, who marks 20 years as DAYS's Sami today, also has another reason to celebrate: THE BIGGEST LOSER returns tonight for its 14th season. "I love this season," enthuses Sweeney, the show's host. "I think when you meet the contestants, you'll fall in love with them like we have. Anyone with kids has to tune in to see how we're tackling the major issue of childhood obesity head on." The NBC series returns tonight at 9 p.m. EST.