What happened during the 'Big Brother' season 25 premiere ...

Spoiler alert! This following post discusses events that occurred during the "Big Brother" season 25 premiere on Aug. 2.

The hit CBS reality show "Big Brother" returned with a bang Wednesday night.

To kick off its monumental season, "Big Brother" not only nominated four houseguests right off the bat (before even crowning a Head of Household), but it also announced possibly the biggest twist in the show's history (no, we're not exaggerating). Near the end of the episode, host Julie Chen Moonves revealed that "Survivor" legend Cirie Fields would be the unprecedented 17th houseguest this season, joining her son, Jared Fields, who is also on the cast.

So when will the show air its next episode?

Here's everything you need to know.

Related:Ohio native Tyler Crispen talks 'Big Brother,' 'The Challenge: USA'

When does 'Big Brother' come on next?

Following its premiere, "Big Brother" will air the second episode of its 25th season at 8 p.m. ET Sunday.

What nights are 'Big Brother' on?

Aside from the first week, episodes air on Sundays, Wednesdays and Thursdays.

According to Screen Rant, the Sunday and Wednesday episodes air at 8 p.m. ET, while the Thursday show starts at 9 p.m. However, "Big Brother" will eventually change its schedule once football season and other CBS fall shows begin, airing Sunday, Tuesday and Thursday.

What channel is 'Big Brother' on?

"Big Brother" airs live on CBS and the Paramount+ app. Viewers can stream episodes the next day on Paramount+, where they can also stream live feeds throughout the day.

What happened on 'Big Brother' Tuesday, Aug. 2?

Sixteen new houseguests entered the house during the "Big Brother" season 25 premiere. But instead of a Head of Household competition, the show hosted four separate nomination challenges, with the four losers automatically going on the block.

The four nominees are currently Felicia Cannon, Cory Wurtenberger, Jared Fields and Kirsten Elwin. As part of the Scary-verse competition, Wurtenberger also disappeared from the rest of the houseguests, but no one knows what his fate will be yet.

At the end of the episode, the show revealed "Survivor" legend Cirie Fields as the 17th houseguest.

How long will 'Big Brother' 2023 last?

This season will last 100 days. The finale will air Nov. 9, according to entertainment journalist Sharon Tharp.

How to watch 'Big Brother' live feeds

"Big Brother" live feeds are available to watch with a Paramount+ subscription. Pluto TV will also air live feeds for free all season, with five different channels.