Host Julie Chen takes a selfie with Houseguests Matthew Clines, Josh Martinez, Jessica Graf, Megan Lowder, Ravel Walton, Cody Nickson, Jillian Parker and Cameron Heard before they enter the Big Brother House on, the premiere of BIG BROTHER, Wednesday, June 28 (8:00 — 10:00 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2017 CBS Broadcasting, Inc. All Rights Reserved