[4] Following the conclusion of the 2014 civilian season, rumours had begun circulating that Nine were looking at reviving the Celebrity Big Brother edition of the show for broadcast in 2015 which were later confirmed by host Sonia Kruger.

However, there are still key differences compared to the North American format, most prominently, no "Power of Veto" is included as part of the format (a staple of the American and Canadian shows), and the Australian public deciding the eventual winner - rather than being decided by a Jury formed of evicted housemates.

[7] Following completing a secret mission issued to them by Big Brother, Caitlyn and Ellie earned the right to each become a captain of one of the two teams that the house would be split into.

[23] In July 2021, it was confirmed that the site of the new Big Brother house used for the series would be constructed in the White Pavilion at the Sydney Olympic Park at Homebush Bay.

[30] In July 2021 Katie Hopkins, who was set to appear on the show after appearing on the fifteenth season of Celebrity Big Brother UK in 2015, made multiple posts on Instagram mocking several lockdown measures in place in Sydney, as well as stating she was intentionally not following rules in place.

[33] Her visa was ultimately canceled, she was fined $1,000 and was also escorted to Sydney Airport by police on July 19, 2021, for deportation back to the UK.

[37] The series was later broadcast in the UK, under the localised title Celebrity Big Brother Australia, on E4 starting on 6 February 2022,[38] however it was removed from the schedule after airing four episodes but continued to be released via the All 4 on-demand service.

Ratings data is from OzTAM and represents the viewership from the 5 largest Australian metropolitan centres (Sydney, Melbourne, Brisbane, Perth and Adelaide).