Sixteen houseguests enter the house for a chance to win $500,000.
21 x 1Season Premiere | Big Brother Season 21 Episode 1 Jun. 25, 2019
21 x 2Episode 2 | Big Brother Season 21 Episode 2 Jun. 26, 2019
21 x 3Episode 3 | Big Brother Season 21 Episode 3 Jun. 30, 2019
21 x 4Episode 4 | Big Brother Season 21 Episode 4 Jul. 02, 2019
21 x 5Episode 5 | Big Brother Season 21 Episode 5 Jul. 03, 2019
21 x 6Episode 6 | Big Brother Season 21 Episode 6 Jul. 07, 2019
21 x 7Episode 7 | Big Brother Season 21 Episode 7 Jul. 10, 2019
21 x 8Episode 8 | Big Brother Season 21 Episode 8 Jul. 11, 2019
21 x 9Episode 9 | Big Brother Season 21 Episode 9 Jul. 14, 2019
21 x 10Episode 10 | Big Brother Season 21 Episode 10 Jul. 17, 2019
21 x 11Episode 11 | Big Brother Season 21 Episode 11 Jul. 18, 2019
21 x 122112 | Big Brother Season 21 Episode 12 Jul. 21, 2019
21 x 13Episode 13 | Big Brother Season 21 Episode 13 Jul. 24, 2019
21 x 14Episode 14 | Big Brother Season 21 Episode 14 Jul. 25, 2019
21 x 152115 | Big Brother Season 21 Episode 15 Jul. 28, 2019
21 x 16Episode 16 | Big Brother Season 21 Episode 16 Jul. 31, 2019- 21 x 17Episode 17 | Big Brother Season 21 Episode 17 Aug. 01, 2019
- 21 x 182118 | Big Brother Season 21 Episode 18 Aug. 04, 2019
- 21 x 192119 | Big Brother Season 21 Episode 19 Aug. 07, 2019
- 21 x 202120 | Big Brother Season 21 Episode 20 Aug. 08, 2019
- 21 x 212121 | Big Brother Season 21 Episode 21 Aug. 11, 2019
- 21 x 222122 | Big Brother Season 21 Episode 22 Aug. 14, 2019
- 21 x 232123 | Big Brother Season 21 Episode 23 Aug. 15, 2019
- 21 x 24Episode 24 | Big Brother Season 21 Episode 24 Aug. 18, 2019
- 21 x 25Episode 25 | Big Brother Season 21 Episode 25 Aug. 21, 2019
- 21 x 26Episode 26 | Big Brother Season 21 Episode 26 Aug. 22, 2019
- 21 x 27Episode 27 | Big Brother Season 21 Episode 27 Aug. 25, 2019
- 21 x 28Episode 28 | Big Brother Season 21 Episode 28 Aug. 28, 2019
- 21 x 29Episode 29 | Big Brother Season 21 Episode 29 Aug. 29, 2019
- 21 x 30Episode 30 | Big Brother Season 21 Episode 30 Sep. 01, 2019
- 21 x 31Episode 31 | Big Brother Season 21 Episode 31 Sep. 04, 2019
- 21 x 32Episode 32 | Big Brother Season 21 Episode 32 Sep. 05, 2019
- 21 x 33Episode 33 | Big Brother Season 21 Episode 33 Sep. 08, 2019
- 21 x 34Episode 34 | Big Brother Season 21 Episode 34 Sep. 11, 2019
- 21 x 35Episode 35 | Big Brother Season 21 Episode 35 Sep. 12, 2019
- 21 x 36Episode 36 | Big Brother Season 21 Episode 36 Sep. 15, 2019
- 21 x 37Episode 37 | Big Brother Season 21 Episode 37 Sep. 18, 2019
- 21 x 38Episode 38 | Big Brother Season 21 Episode 38 Sep. 19, 2019
- 21 x 39Episode 39 | Big Brother Season 21 Episode 39 Sep. 22, 2019
- 21 x 40Episode 40 | Big Brother Season 21 Episode 40 Sep. 25, 2019