A number of special episodes aired during the original run of the season. These included:
Live Surprise "Live Surprise" was a live show broadcast on Day 2. During this show, the Logan twins swapped places with each other for the first time. They were given two minutes in the Diary Room to exchange as much information as possible, and Greg then had to go to the
Isolation Room while David went into the Big Brother House. The
Daily Show was broadcast as a part of
Live Surprise. Hosted by
Gretel Killeen.
Lies Exposed "Lies Exposed" was a show broadcast on Day 8. After Glenn's discovery that Logan was in fact two twins, this was revealed to all of the housemates. Before this, Constance, Dean and Nelson were all evicted to the Punishment Room; and were told their fate by Big Brother. Hosted by Gretel Killeen.
Viewers Verdict "Viewers Verdict" was a live show broadcast on Day 10. This special was aired because Constance, Dean and Nelson, had all lied about their relationship status. A public vote was held, that was started on Day 9 and was closed during the show, minutes before two of these housemates who had broken the rules were evicted. Constance and Nelson were evicted in this show, and were reunited with their partners. They both had separate eviction interviews with Gretel, and were both told that, because they had deceived Big Brother, they would receive no prizes. Dean was safe, but Big Brother still punished him by banning him from nominations and by putting him up for the public vote next week.
Housemates: Incoming! "Housemates: Incoming!" was a live show broadcast during Day 25, where replacement housemates Rachael and Vesna were introduced to the public and put in the House.
Intruders Arrive "Intruders Arrive" was a live show broadcast on Day 53, where
Intruders Heath, Rita and Melanie entered the Big Brother House.
Intruder Eviction "Intruder Eviction" was a live show broadcast on Day 59. The housemates were given 1 minute and 30 seconds to discuss amongst themselves which of the new
Intruders, Heath, Melanie and Rita, they wanted to keep. They decided to keep Rita, so Heath and Melanie were put up for eviction. As the public
SMS vote started and finished during the show, lasting only twenty minutes, viewers in
Western Australia,
South Australia and the
Northern Territory were not able to vote as television shows in
Australia are broadcast with a delay depending on the state to compensate for differences in
Australian time zones. Heath received the most votes and was evicted. It was hosted by Gretel Killeen.
Surprise Twin Eviction "Surprise Twin Eviction" was a live
Eviction aired on Day 74. With
David and
Greg both living in the House as a single housemate, the twins were put up for eviction as two separate people. David was evicted. Hosted by Gretel Killeen.
Friday Night Live – All-Stars A special
All Stars edition of
Friday Night Live took place on Day 90. Greg, Melanie, Tim and Vesna all competed against a team of ex-housemates to try to win a A$20,000 addition to the prize fund. The team they were competing against was Paul and Wesley from
Big Brother 2004,
Joanne from
Big Brother 2003, and
Jess from
Big Brother 2002; and if they won
Friday Night Live, they would win the $20,000 in the form of $5,000 each.
Bree Amer and
Ryan Fitzgerald,
Friday Night Live co-presenters and former
Big Brother 2004 housemates, participated in one of the games, each as an additional member of one of the teams. The All Stars team won the
Friday Night Live.
The Final Countdown "The Final Countdown" was aired on Day 93. In this show,
Nadia Almada, winner of
Big Brother 5 UK, entered the Big Brother House as a house-guest. Hosted by
Gretel Killeen.
The Prize Fight "The Prize Fight" was a special
Friday Night Live that aired on Day 97. The remaining housemates were given the opportunity to win the $400,000 the prize money they had lost in fines. They earned $236,000.
Finale The season finale aired on Day 100 in which Logan Greg & Logan David was announced the winners and Tim the runner-up.
Logan councillor and future Queensland MP
Aidan McLindon jumped on the set as Gretel Killeen prepared to announce the winner, and was later fined $250. He was elected as the member for
Beaudesert in
2009. ==Controversies==