Big Brother season 27's houseguests have been playing hard throughout their first week of competition, and host Julie Chen Moonves has a hot take about who's been the smartest player navigating the house.

Big Brother follows a group of people living together in a house outfitted with more than 100 cameras and 100 microphones, recording their every move 24 hours a day. Each week, someone will be voted out of the house, with the last remaining Houseguest receiving the grand prize of $750,000.

Big Brother Season 27 only just turned on the live feeds earlier this week, but if the delayed start was meant to help the Houseguests curb some questionable behavior while gettin

"Big Brother" is set to premiere this week. For Season 27 of the hit reality competition series, the official theme will be "Big Brother: A Summer of Mystery," CBS confirmed Wednesday, July 2.

You can watch new episodes of Big Brother live on CBS, CBS.com, or with an active subscription to Paramount+ Premium, which is currently available for only $0.99/month for your first two months ($12.99/month after). However, you’d better hurry, as the offer ends on July 13.

The premiere of Big Brother Season 27 is just days away, but that's not soon enough for some. The house and theme were revealed, as well as the existence of a mystery 17th Houseguest. CBS decided to tease fans just a bit more by dropping a five-second promo featuring five of the new contestants.