Episode 1
Episode 1
1h 22m
Big Brother has been watching and he's ready to play. The first 12 housemates enter the Big Brother house and one is tasked with a secret mission.
Where to watch Big Brother
TV series
Big Brother
200116 seasons4.1 / 10
Unfiltered. Unscripted. Unmissable.
Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other versions of the format, the show features a group of contestants, known as "housemates" who live together in a specially constructed house that is isolated from the outside world. The housemates are continuously monitored during their stay in the house by live television cameras as well as personal audio microphones. Throughout the course of the competition, housemates are evicted from the house - eliminated from the competition. The last remaining housemate wins the competition and is awarded a cash prize.
Availability
Not streaming in United States
Checked Jul 22, 2026
Big Brother premiered April 24, 2001. We don't have a confirmed streaming, rental or purchase option yet.
Synopsis
Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other versions of the format, the show features a group of contestants, known as "housemates" who live together in a specially constructed house that is isolated from the outside world. The housemates are continuously monitored during their stay in the house by live television cameras as well as personal audio microphones. Throughout the course of the competition, housemates are evicted from the house - eliminated from the competition. The last remaining housemate wins the competition and is awarded a cash prize.
Season 12 episodes
Choose an episode, then use the watch options above for the show.
Episode 2
Episode 2
1h 22m
Four new housemates enter the Big Brother house under the cover of darkness. Big Brother unveils a winter wonderland that will force old and new housemates to break the ice, but one will be evicted.
Where to watch Big BrotherEpisode 3
Episode 3
1h 21m
The final four housemates descend from the heavens and the King and Queen of the house aren't impressed. While some housemates get close, others better hold on tight because someone will be evicted.
Where to watch Big BrotherEpisode 4
Episode 4
1h 17m
As two Housemates get close, others are forced to face their deepest fears. With a house divided, one big play changes the game. Hosted by Sonia Kruger.
Where to watch Big BrotherEpisode 5
Episode 5
1h 12m
Mother Nature unleashes hell as Housemates compete in the most physically gruelling challenge yet. There's a storm brewing inside the house when one person sets off a game of "he said, she said".
Where to watch Big BrotherEpisode 6
Episode 6
1h 11m
Sleep deprivation sets in with the latest House Task, Big Brother sends Housemates in a spin, and there is a huge twist on the horizon. Hosted by Sonia Kruger.
Where to watch Big BrotherEpisode 7
Episode 7
1h 14m
Big Brother gives one housemate a second chance to take down the others. As the housemates become ‘Yes Men’, there is another nomination challenge to get stuck into.
Where to watch Big BrotherEpisode 8
Episode 8
1h 10m
One housemate decides it’s time to unite the two sides of the house to get rid of a common enemy. But could this big move backfire? Plus a surprise return!
Where to watch Big BrotherEpisode 9
Episode 9
1h 11m
With a dark cloud hovering over the house, Housemates must brave the rain if they want to win big. The boys live it up with an advantage over the girls.
Where to watch Big BrotherEpisode 10
Episode 10
1h 10m
Things are getting cramped in the house as one housemate plots a risky power play.
Where to watch Big BrotherEpisode 11
Episode 11
1h 8m
As alliances shift yet again, one housemate’s willpower could be their strongest ally.
Where to watch Big BrotherEpisode 12
Episode 12
1h 9m
They've made it to the top 10, but there are plenty of shocks ahead as the game heats up. A bold plan is hatched, but a costly mistake from one of their own could be the alphas' undoing.
Where to watch Big BrotherEpisode 13
Episode 13
1h 7m
They’ve been cut off from the outside world for 28 days but that’s all about to change. Big Brother is placed into lockdown and the game is suspended as the escalating coronavirus pandemic hits home.
Where to watch Big BrotherEpisode 14
Episode 14
1h 7m
A shattered Housemate seeks revenge and sets out to bring down an unbreakable alliance.
Where to watch Big BrotherEpisode 15
Episode 15
1h 10m
One gravity-defying challenge and two unbreakable bonds but the big power sits with a little package.
Where to watch Big BrotherEpisode 16
Episode 16
1h 7m
Paranoia grows and game play takes an unexpected turn as Big Brother saves his most epic twist for last. Big Brother is hosted by Sonia Kruger.
Where to watch Big BrotherEpisode 17
Episode 17
1h 8m
Big Brother’s mind games test the housemates’ resolve, while the nomination challenge puts loyalties to the test. Big Brother is hosted by Sonia Kruger.
Where to watch Big BrotherEpisode 18
Episode 18
1h 2m
With only four days left in the house, the $250,000 prize is closer than ever as two housemates roll the dice on Big Brother’s biggest twist yet! Big Brother is hosted by Sonia Kruger.
Where to watch Big BrotherEpisode 19
Episode 19
1h 9m
The battle lines are drawn for the biggest showdown of the game as the Top 4 for 2020 is decided. Expect two epic challenges and a monster twist when one housemate’s secret power is revealed.
Where to watch Big BrotherEpisode 20
Episode 20
58m
All that stands between the Top 4 and a place in the grand final is one incredible nomination challenge. Who will win the power to determine the Final 3 for 2020?
Where to watch Big BrotherEpisode 21
Episode 21
1h 4mfinale
The live grand finale is here. Three housemates remain but only one will win the title of Big Brother 2020 and the $250,000 prize. Who wins? You decide.
Where to watch Big BrotherEpisode information updated Jul 26, 2026
Available now in United States
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More about Big Brother
Cast
Sonia KrugerSelf - Host
Jackie OSelf - Host
Gretel KilleenSelf - Host
Mel TracinaSelf - Host
Mike GoldmanSelf - Narrator (voice)
Kyle SandilandsSelf - HostRyan Ginns
Katrina MianiSelf - Housemate
Credits
- Created by
- John de Mol
Production details
- Status
- Returning Series
- Series type
- Reality
- Episodes
- 1,488
- Original language
- English
Networks & production
10Australia
Nine NetworkAustralia
Seven NetworkAustralia
EndemolShine AustraliaAustralia- Southern Star EntertainmentAustralia
Themes
big brotherhousemates