Big Brother 19 premieres this June on CBS, continuing with its annual schedule.

CBS has announced summer premiere dates for its programming, which includes the highly anticipated return of Big Brother. The 19th season of Big Brother will premiere Wednesday, June 28 at 8 p.m. ET/PT on CBS, which will be a two-hour episode.

The second episode of Big Brother 19 will air Thursday, June 29 at 9 p.m. ET/PT, while the third episode will air Sunday, July 2 at 8 p.m. ET/PT. The series will proceed with its regular schedule of Wednesdays at 8 p.m., Thursdays at 9 p.m. and Sundays at 8 p.m.

It's not clear if there will be any major format changes, but it can probably be assumed that Sundays will include the nomination ceremony, Wednesdays will include the Veto competition and ceremony and Thursdays will include the live eviction and Head of Household competition.

Julie Chen is set to return as host of Big Brother 19, though no other details regarding cast or twists have been released. However, it's a safe assumption that the upcoming season will at least have some new players if not all, considering there are casting calls scheduled for the next few months.

Last season, Big Brother 18, featured 12 new players alongside four returnees: Frank Eudy from Big Brother 14, Nicole Franzel from Big Brother 16 and Da'Vonne Rogers and James Huling from Big Brother 17. Nicole would go on to win the season, beating newbie Paul Abrahamian by the narrowest of margins: 5-4.

Big Brother has only produced one all-star season - 2006's Big Brother: All Stars. However, the reality series has brought back several houseguests to compete with newbies. In addition to Big Brother 18, mixed seasons included Big Brother 11, Big Brother 13 and Big Brother 14.

Tags: Big Brother Reality TV CBS