with 2 episodes premiered on June 21, 2006

Various specials shown before a season of Big Brother starts.

with 70 episodes premiered on July 5, 2000

Big Brother 2000 was a near-exact port of the hit Netherlands (Holland) series of the same name. Every week, Housemates would nominate two fellow housemates and the two or more housemates with the mo… see more

with 30 episodes premiered on July 5, 2001

This season brings a complete reformatting of Big Brother 1. The introduction of the Head of Household (HOH). The HOH nominates two houseguests for eviction. The fellow contestants vote, and the play… see more

with 32 episodes premiered on July 10, 2002

This season brings about more changes to the Big Brother format - the introduction of the Silver and Golden Power of Vetos.

with 33 episodes premiered on July 8, 2003

In this season's twist, ten of the thirteen houseguests are shocked to learn that they will compete alongside their exes. In addition, introduction of the Diamond Power of Veto and the sequestered Ju… see more

with 31 episodes premiered on July 6, 2004

In this season's twists, there are two sets of pre-existing relationships in the house - secret twins and long lost siblings.

with 30 episodes premiered on July 7, 2005

In this season's twist, every houseguest enters the house with a secret partner - believing they were the only pair. If both can reach the end, the winner would receive a grand prize of $1,000,000 a… see more

with 28 episodes premiered on July 5, 2006

Fourteen of the best and most iconic Big Brother Houseguests make their return to compete for the $500,000 grand prize.

with 33 episodes premiered on July 4, 2007

In the season's twists, 3 houseguests are shocked to learn their "enemy" will be entering the game - ex best friends, ex-boyfriends, and an estranged father and daughter.

with 33 episodes premiered on February 11, 2008

In the season's twist, every houseguest would compete, be nominated, and be evicted as couples.

with 29 episodes premiered on July 12, 2008

with 30 episodes premiered on July 9, 2009

with 30 episodes premiered on July 7, 2010

with 29 episodes premiered on July 6, 2011

In the twist of the summer, three Dynamic Duos of iconic previous houseguests make their return for another chance to win - Dick and Daniele, Jordan and Jeff, Rachel and Brendon.

with 30 episodes premiered on July 11, 2012

In the season's twist, four previous houseguests return as Coaches to build a Big Brother dream team - a $100,000 prize awaits the coach who picks the Big Brother winner.

with 36 episodes premiered on June 25, 2013

with 40 episodes premiered on June 25, 2014

This season's twist brings about the Battle of Block - two HOHs, 4 nominations, and the chance of an HOH being evicted.

with 40 episodes premiered on June 24, 2015

This season brings back the iconic Twin Twist with two sisters swapping out every few days, unbeknownist to the other houseguests. The Battle of the Block makes it return.

with 42 episodes premiered on June 22, 2016

with 39 episodes premiered on June 28, 2017

Season 19's new twist is called “Summer of Temptation,” where the Houseguests will be challenged like never before as they embark on a season of tempting offers that could give them money, power and … see more

with 40 episodes premiered on June 27, 2018

with 40 episodes premiered on June 25, 2019

with 37 episodes premiered on August 5, 2020

Sixteen former Houseguests return to the game for a second chance at the grand prize of $500,000.

with 37 episodes premiered on July 7, 2021

with 34 episodes premiered on July 6, 2022

with 42 episodes premiered on August 2, 2023

It is the Summer of the BB Multiverse. Three former Houseguests enter the house and unleash four universes onto the house. The Comic, Humili, Scary, and Scramble-verses unlock new twists and themed c… see more

with 39 episodes premiered on July 17, 2024

This season is the Summer of Artificial Intelligence. A.I. bots Ainsley and Jankie take over and introduce a brand new competion that changes the game - the A.I. Arena.

with 39 episodes premiered on July 9, 2025

This season is the Summer of Mystery as the Houseguests enter the Hotel Mystère, a place where secrets lurk behind every door and nothing is as it seems. This season celebrates the 25-year anniversa… see more