TV Big Brother - Season 13 Episode 20 : Episode 20 Big Brother - Season 13 Episode 20 : Episode 20 4.071/10 by 21 users Hell Week reaches it's dramatic conclusion with the most terrifying challenge in Big Brother history. Then an almighty bombshell blows the game up. Details Casts Posters Images Title Big Brother - Season 13 Episode 20 : Episode 20 Alternative Titles Big Brother (AU), Big Brother (Australia), Big Brother AU First Air Date 2001-04-24 Last Air Date 2025-12-08 Number of Episodes 1484 Number of Seasons 16 Genres Reality, Networks 10, Nine Network, Seven Network, Casts Mike Goldman, Mel Tracina Plot Keywords , Self - Narrator (voice) Mike Goldman Self - Host Mel Tracina Episodes List Big Brother Season 13 :Episode 1 Episode 1 Episode 1 2021-04-26 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 2 Episode 2 Episode 2 2021-04-27 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 3 Episode 3 Episode 3 2021-04-28 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 4 Episode 4 Episode 4 2021-05-02 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 5 Episode 5 Episode 5 2021-05-03 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 6 Episode 6 Episode 6 2021-05-04 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 7 Episode 7 Episode 7 2021-05-05 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 8 Episode 8 Episode 8 2021-05-09 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 9 Episode 9 Episode 9 2021-05-10 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 10 Episode 10 Episode 10 2021-05-11 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 11 Episode 11 Episode 11 2021-05-12 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 12 Episode 12 Episode 12 2021-05-17 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 13 Episode 13 Episode 13 2021-05-18 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 14 Episode 14 Episode 14 2021-05-19 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 15 Episode 15 Episode 15 2021-05-24 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 16 Episode 16 Episode 16 2021-05-25 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 17 Episode 17 Episode 17 2021-05-26 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 18 Episode 18 Episode 18 2021-05-31 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 19 Episode 19 Episode 19 2021-06-01 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 20 Episode 20 Episode 20 2021-06-02 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 21 Episode 21 Episode 21 2021-06-07 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 22 Episode 22 Episode 22 2021-06-08 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 23 Episode 23 Episode 23 2021-06-09 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 24 Episode 24 Episode 24 2021-06-14 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 25 Episode 25 Episode 25 2021-06-15 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 26 Episode 26 Episode 26 2021-06-16 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 27 Episode 27 Episode 27 2021-06-21 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 28 Episode 28 Episode 28 2021-06-22 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 29 Episode 29 Episode 29 2021-06-23 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 30 Episode 30 Episode 30 2021-06-28 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other... Big Brother Season 13 :Episode 31 Episode 31 Episode 31 2021-06-29 Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other...