What Time Is Big Brother On Tonight? Sept. 13 Starts at 8:30 ET

Bottom line - Big Brother airs Sunday, Sept. 13 at 8:30 p.m. ET on CBS, not 8. It is a one-hour episode.
| Date | Sunday, Sept. 13 |
|---|---|
| Time | 8:30 p.m. ET / 7:30 p.m. CT |
| Network | CBS |
| Episode | Season 28, Episode 29 |
| Runtime | 60 minutes |
Why is Big Brother starting late tonight?
CBS carries NFL doubleheader coverage on Sunday afternoons. When the late game runs long, the prime-time grid slides.
Sunday listings for this date already carry the 8:30 start rather than the usual 8. Treat it as a floor, not a promise - a tight finish out West can push things a few more minutes.
If you record it, add 30 minutes at the end. A shifted start eats the back half of a one-hour recording.
What time is Big Brother on the rest of September?
Sunday is not the only night that moves this month. We pulled every remaining Season 28 airing and lined the clocks up side by side.
| Date | Episode | Time (ET) | Length |
|---|---|---|---|
| Sun, Sept. 13 | 29 | 8:30 p.m. | 60 min |
| Wed, Sept. 16 | 30 | 8 p.m. | 120 min |
| Thu, Sept. 17 | 31 - Live Eviction | 8 p.m. | 120 min |
| Sun, Sept. 20 | 32 | 8 p.m. | 60 min |
| Wed, Sept. 23 | 33 | 10 p.m. | 60 min |
| Thu, Sept. 24 | 34 - Live Eviction | 8 p.m. | 60 min |
| Sun, Sept. 27 | 35 | 9:30 p.m. | 60 min |
Two things jump out. The Sept. 16 and 17 episodes are both double-length, and Sept. 23 sits at 10 p.m. - two hours off its usual slot.

Where can you stream it?
Paramount+ carries the CBS simulcast on its live-TV tier, and the episode lands on demand after the broadcast.
The 24/7 live feeds are a separate product on Paramount+. Feeds keep running during the episode, which is how spoilers reach social media before the broadcast ends.
What usually happens in a Sunday episode?
Sunday is the setup night. It covers the head-of-household competition and the nomination ceremony that follow the previous Thursday eviction.
The veto meeting lands Wednesday, and the eviction is live Thursday. Our Episode 27 veto recap walks through how that week played out, and the Big Brother section keeps the running episode list.
For the wider week, see the reality week planner. Elsewhere on the schedule this month: AGT quarterfinals, the MasterChef finale, RHONY Season 16, and the DWTS section ahead of the Sept. 15 premiere.
FAQ
Is Big Brother on at 8 or 8:30 p.m. on Sunday, Sept. 13?
8:30 p.m. ET / 7:30 p.m. CT on CBS, and it runs a full hour. The later start follows CBS's Sunday NFL coverage.
When is the next Big Brother episode after Sunday?
Wednesday, Sept. 16 at 8 p.m. ET, a two-hour episode. The two-hour live eviction follows on Thursday, Sept. 17, also at 8 p.m. ET.
Sources
- TVmaze - Big Brother episode listings and air times (data provided by TVmaze)
- CBS - Big Brother show page
We update this page if the start time moves again.
- Big Brother 28 Results, Sept. 10, 2026: Angela Evicted 3-2 After Devens Wins the Block Buster
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- Big Brother 28 Runs 90 Minutes Wednesday - Veto Night, Eight Left, and a Two-Hour Sept. 16
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