Big Brother (American TV series)

*Big Brother*
Big Brother
Also known as	Big Brother US
Genre	Reality competition
Based on	Big Brother; by John de Mol Jr.
Presented by	Julie Chen Moonves; Ian O'Malley; Jerry O'Connell;
Starring	Big Brother houseguests
Voices of	Multiple producers; Don Wollman;
Narrated by	Dave Walsh; Philip Proctor; Clayton Halsey;
Theme music composer	Marie Maxwell (season 2–5); John Thomas (season 2–5); David Vanacore; Ken Berry;
Opening theme	"Live" by Jonathan Clarke (2000)
Country of origin	United States
Original language	English
No. of seasons	27
No. of episodes	975 (list of episodes)
Production
Executive producers	Paul Römer (2000); Douglass Ross (2000); Arnold Shapiro (2001–2006); Allison Grodner (2001–); Rich Meehan (2004–);
Producer	Don Wollman
Production location	Studio City, California
Camera setup	Multi-camera
Running time	20–23 minutes (2000); 40–120 minutes (since 2000);
Production companies	Endemol USA (2000–2014); Evolution Media (2000); Orwell Productions (2000); Our House Productions (2001–present); Arnold Shapiro Productions (2001); Shapiro/Grodner Productions (2002–2006); Allison Grodner Productions (2007–2009); Fly on the Wall Entertainment (2010–present); Endemol Shine North America (2015–2023); Banijay Americas (2023–present);
Original release
Network	CBS
Release	July 5, 2000 –; present
Related
	Companion shows; House Calls; Big Brother: After Dark; Big Brother: Live Chat; Off the Block; Spin-offs; Big Brother: Over the Top; Big Brother Reindeer Games; Celebrity Big Brother; Adaptation; Big Brother Canada; Related; Gran Hermano; International versions;
	Infobox instructions (only shown in preview)

Big Brother is an American reality competition television show based on the Dutch show of the same name created by producer John de Mol Jr. and Ron Diesel in 1997. The American series launched on July 5, 2000, on CBS and since the discontinuation of the Spanish version in 2022, is the longest-running adaptation in the Big Brother franchise.

The show broadly follows the premise of other versions, in which a group of contestants, known as "houseguests", live together in a specially constructed house that is isolated from the outside world and compete for a cash prize of $750,000 ($500,000 prior to season 23). The houseguests are continuously monitored during their stay by live television cameras as well as personal audio microphones. Throughout the course of the competition, houseguests are "Evicted" from the House, eliminating them from the game.

In its inaugural season (which followed the original Dutch format in which audience voting determined evictees and the eventual winner), ratings declined, and critical reaction grew increasingly negative, prompting the series to be revamped for the second season, which focused on competition and gameplay.

The show's twenty-seventh season premiered on July 10, 2025, serving as the show's 25-year anniversary season.