The “Entertainment Tonight” special looks back at the groundbreaking series’ most memorable moments, shocking twists and showmances through archival footage and exclusive interviews with host Julie Chen Moonves and fan-favorite houseguests

Sixteen complete strangers enter this house, to try to make their own mark on 'BB' history. Totally cut off from the outside world, they compete for safety and power. Each week, they will vote to evict one of their own, until only one houseguest remains, to claim the $750,000 grand prize. What does the 'BB' universe have in store? Frankie Grande, Britney Haynes and Danielle Reyes break into the house and unleash the season's twist.

With only three remaining, Bowie, Jag, and Matt go to battle in the three part final Head of Household competition. Who will emerge victorious and earn the power to cast the last eviction vote of BB 25? Plus, the Jury returns to choose the winner of the $750,000 grand prize. And we reveal who you voted as America's Favorite Houseguest. Then, a huge announcement unleashes a new game just in time for the holidays.