| Gran Hermano | |
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| Genre | Reality television |
| Based on | Big Brother by John de Mol Jr. |
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| Country of origin | Argentina |
| Original language | Spanish |
| No. of seasons |
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| No. of episodes | 357 (list of episodes) |
| Production | |
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| Release | 10 March 2001 – present |
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Gran Hermano is the Argentine version of the international reality television franchise Big Brother produced by Endemol. The show is currently hosted by Santiago del Moro, taking over after Jorge Rial and previously Soledad Silveyra. The show first aired on 10 March 2001 on Telefe and aired seven regular and one Celebrity season until 16 April 2012. It was on hiatus for three years until 29 April 2015, when a revival of the series began airing on América TV for two seasons until 24 August 2016. After a six-year break, the show returned to Telefe for its tenth season that premiered on 17 October 2022.[1] Gran Hermano was renewed for an eleventh season on 27 March 2023,[2] and a twelfth season on 3 July 2024.[3]
The show features contestants called "HouseGuests" who live together in a specially constructed house that is isolated from the outside world, and 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, they are voted out (usually on a weekly basis) until only one remains and wins the cash prize.