# Big Brother (Australian TV series) season 7

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Big Brother Australia 2007, also known as Big Brother 7, was the seventh season of the Australian reality television series Big Brother. Episodes were broadcast on Network Ten in Australia, and the first episode aired on 22 April 2007. Despite a drop in ratings compared to previous seasons, and a number of controversies, the then Big Brother executive producer Kris Noble considers the year's season a success. At the end of this season's finale broadcast 30 July 2007, it was announced by host Gretel Killeen that Big Brother would be returning for an eighth season in 2008. In the finale Aleisha Cowcher was announced as the winner of Big Brother Australia 2007. She won by the closest winning margin ever in the Australian version. The news the following day reported a margin of 51% versus 49% – a difference of 65 votes. This was the last season hosted by Gretel Killeen.

## Development

During the sixth-season finale, a seventh season of the show was confirmed. Auditions were held throughout November and December 2006, taking place in Brisbane, Sydney, Melbourne, Adelaide, Perth, Hobart, and Darwin. The house this season was confirmed to have an 'eco-friendly' theme and style; It featured a pedal-powered washing machine, a rubber garden turf made from recycled car tyres and carpets made from goat hair. On 18 April 2007, after housemates were put into lockdown, it was revealed that there would be no prize money this season. The launch date of the seventh season was rumoured to be 22 April 2007. These rumours were later confirmed.

## Changes to the format

Big Brother 2007 introduced several new elements not seen in previous seasons of the series.

### Big Brother Starburst Golden Key

On 29 January 2007, Network Ten, Endemol Southern Star, and Masterfoods announced "Australia's biggest ever integrated television promotion", the Big Brother Starburst Golden Key, which would allow a member of the public to enter the Big Brother House as a housemate. Unique alphanumeric codes were included in packs of Starburst, a confectionery manufactured by Masterfoods. One hundred codes gave the opportunity to audition for the BB season after it began. Of these people, one would become a housemate and be eligible to win the season and all prizes. The winner of this competition was selected during a special episode called "Golden Key". On Day 18, Nick Sady was announced the "Golden Key" winner and entered the Big Brother House.

### Prize money

Big Brother originally informed the housemates that there was zero prize money. Later they were informed that they could earn prize money by completing various tasks (similar to that of The Mole).

### Friday Night Live Changes

This year the winner of Friday Night Live was given a greater power in nominations. Replacing the Three Point Twist of previous seasons, the Friday Night Live winner each week this season was required to choose one nominated housemate to be removed from the nomination line-up, and to nominate another to replace them. The winner of Friday Night Live this season was also given the chance to discuss their nominations, both past and present, with their chosen housemate whilst inside the Rewards Room.

### Storeroom

All staple foods provided to housemates this year were vegan. The housemates could supplement this with milk and eggs supplied from the farm yard and herbs and mushrooms from the herb garden.

### Telephone

For the first time Big Brother Australia featured a telephone in the house. It was situated in the lounge and was shown on the Opening Night broadcast before the housemates entered the house. On Day 37, Big Brother informed housemates that if the phone rang only one housemate could answer it. Joel was nominated to answer it on the housemates' behalf. On Day 52 Joel received a call from Big Brother advising that he would be away from the house and would communicate via the phone to Joel at various times. On Day 58 Andrew picked up the phone as a joke, and was penalised by being sent to the Punishment Room to polish boots. Michelle joined him in the Punishment Room due to the weekly task which involved housemates remaining partnered. On Day 97 the housemates were allowed to speak with several of the Big Brother UK 8 housemates. The UK Big Brother House also had a telephone and unlike the Australian version this was the first time the phone was used in the UK version.

### Chill Out Room

Adjacent to the kitchen was a new room called the "Chill Out Room". As an official rule, no more than three housemates were allowed in the room at a time. It provided a quiet place to talk or relax, away from the rest of the housemates.

### White Room

On 23 April 2007, the four remaining wild-card housemates not selected to enter the House via the public vote on Days 1 and 2 were isolated in the "White Room". The housemates were Cruz, Demet, Kara, and Harrison. The White Room and its fixtures and fittings were all entirely white, and the housemates had only white clothes to wear. White Room housemates were provided with a white porridge which fulfilled all nutritional needs. In the centre of the room was a red button. At any time, a housemate could press the red button if they wished to leave. This decision to leave was final and the quitting housemate could not return to the Big Brother House or the White Room. The challenge was that the housemate who stayed in the White Room the longest without pressing the red button would become a legitimate Big Brother housemate and enter the main house with the rest of the housemates. Monitors in the Big Brother House allowed the housemates to watch, without audio, the White Room housemates at all times. The White Room housemates were unaware that they were being watched by the Big Brother housemates. Cruz was the first white room resident evicted when he pressed the red button after Big Brother offered $750 to whoever pushed the red button first. In the days after Cruz departed no one else volunteered to leave, so Big Brother ran a set of challenges to decide who from the White Room would move to the main house. First, Kara was evicted when Harrison and Demet nominated her. Then, the Big Brother housemates lodged their votes on who they wanted in the house. Demet won the vote and became an official housemate.

#### Housemates' voting

* Demet: Aleisha, Andrew, Emma, Hayley, Jamie, Joel, Kate, Rebecca
* Harrison: Bodie, Susannah, TJ, Thomas, Travis, Zoran

### Secret Relationships

It was revealed on the Game On episode that housemates Hayley and Andrew were secretly in a relationship. Big Brother set the task to both housemates to enter the house and keep their relationship secret for one week. If successful in this task both would be allowed stay in the house; if they failed then one of them would be evicted. All other housemates had individually been challenged by Big Brother to secretly discover who was in a secret relationship, each believing they were the only housemate to be issued this challenge. Housemate Billy was added on Day 2. Billy is Hayley's former boyfriend and was added specifically to complicate her task of keeping her relationship with Andrew secret. Hayley was not allowed to inform anyone, including Andrew, of Billy's true status. Each day he received a mission from Big Brother to put pressure on Hayley's secret challenge.

#### Billy's Tasks

* Day 2: Before Billy went to bed, he had to say "Goodnight Hayley, sweet dreams".
* Day 3: From the moment Hayley woke up, Billy had to "wait on her hand and foot" and become her best friend. He also had to pick a bunch of flowers from the garden and give them to Hayley, and ask her to help pick the herbs.
* Day 4: When Billy was asked to take a housemate with him to tend the animals, he had to choose Hayley.
* Day 5: Billy had to become Andrew's best friend.
Big Brother confirmed on Day 8 that Billy's mission was an overall success, and his reward was becoming an official Big Brother 2007 housemate (who could compete to win Big Brother Australia 2007) on Day 16. On 29 April episode, Big Brother revealed the secret relationship. Three housemates had correctly guessed Hayley and Billy were involved. As fewer than half of the housemates had guessed correctly, Big Brother deemed Hayley and Andrew as successful in their challenge so both were allowed to stay. Big Brother also revealed that as Hayley and Andrew had completed their task successfully $50,000 had been awarded into the prize pool.

### No housemates on Rove

Housemates this season were not featured as guests on variety/talk show Rove. Previously housemates would appear on Rove in the days following their eviction. As of 2007 Rove aired on Sunday nights at 8:30, immediately after the Big Brother eviction show. As Rove is taped in Melbourne, Victoria it was impossible for the housemates to travel so quickly to appear on both shows (it is normally a two-to-three-hour flight from the Gold Coast to Melbourne). Even so, Rove chose not to cross to evicted contestants following the eviction shows, as Rove would not start airing immediately after Big Brother.

### Nominations
#### Viewers to nominate housemates

The public were able to submit nomination votes via SMS for 2 July nominations. The housemate with the most votes received two nomination points, and the next housemate received one point. With the tally counted, Michelle had the most votes from the public and so received an extra two nomination points. Daniela received an extra nomination point. As winner of Friday Night Games Daniela had the power of saving one housemate from eviction. She saved herself.

#### Viewers to nominate / Housemates to evict

Big Brother changed the usual format for Week 12 nominations. For this week viewers could nominate housemates, and from the nominated housemates the housemates themselves could vote to evict, reversing the usual procedure. While housemates were put through the usual nomination procedure and their nominations were screened, unknown to them, their nominations were ignored. Viewer nomination points were counted. On Sunday's eviction the housemates were apprised of this twist, and then were individually asked to nominate to evict any of the nominated housemates. The nominated housemate with the most votes was to be evicted. Daniela was evicted with a total of 12 points.

## Housemates

Over the 100-day season, a total of 24 housemates entered the Big Brother House, twelve during the opening night and a following twelve at various points throughout the series. On the opening night, viewers were given the opportunity to vote in two additional housemates, one male and one female, from a selection of six potential housemates, while the remaining four would be isolated in the White Room. The following night, Susannah and Zoran entered the house along with Billy, or Mr. X, whose purpose in the House was to jeopardise Andrew and Hayley's secret relationship challenge as he was Hayley's ex. Billy was not officially recognised as a legitimate housemate until Day 16. Demet, one of the four White Room Wildcards, was voted into the House by the housemates on Day 11, while Nick entered on Day 18 as the winner of the Starburst Golden Key promotion. A further four Intruders followed, Daniela and Laura on Day 31 and Michelle and Zach on Day 50. In a promotion for the upcoming season of Australian Idol, Kyle Sandilands entered the House as a celebrity guest with a mission from Big Brother to encourage housemates to "be themselves", but left the House early due to a severe migraine. Due to an incident prior to the Big Brother 2007 finale, Intruder Laura was not invited to attend and participate while all other former Big Brother housemates, wildcards and intruders were present.
| Name | Age | Day entered | Day exited | Result |
| Aleisha Cowcher | 20 | 0 | 100 | Winner |
| Zach Douglas | 24 | 50 | 100 | Runner-up |
| Travis Perkins | 32 | 0 | 99 | Evicted |
| Billy Bentley | 23 | 2 | 99 | Evicted |
| Zoran Vidinovski | 23 | 2 | 92 | Evicted |
| Joel Scalzi | 24 | 0 | 92 | Evicted |
| Daniela Da Silva Pola | 24 | 31 | 85 | Evicted |
| Michelle Olsen | 33 | 50 | 78 | Evicted |
| Jamie McDonald | 29 | 0 | 71 | Evicted |
| Thomas Haynes | 27 | 0 | 64 | Evicted |
| Andrew Temment | 28 | 0 | 64 | Evicted |
| Laura Clare | 20 | 31 | 57 | Evicted |
| Rebecca Dent | 23 | 0 | 50 | Evicted |
| Emma Cornell | 24 | 0 | 50 | Evicted |
| Susannah Murray | 30 | 2 | 43 | Evicted |
| Nick Sady | 25 | 18 | 36 | Evicted |
| Hayley Zalewski | 24 | 0 | 31 | Evicted |
| Demet Sahan | 25 | 11 | 29 | Evicted |
| Bodie Czeladka | 24 | 0 | 22 | Evicted |
| TJ Whitlock | 22 | 0 | 22 | Evicted |
| Kate Gladman | 25 | 0 | 15 | Evicted |

## Nominations Table

Each housemate nominated two housemates for eviction each week, excluding the first. The first housemate listed was nominated for 2 points, whilst the second housemate was nominated for a single point. The three or more housemates with the most nomination points faced the public vote to save/evict, and when the save votes were subtracted from the evict votes, the housemate with the most evict votes was then evicted. Before the weekly nominations took place, the housemates competed in a competition called Friday Night Live (FNL) – the winner of which won a special nomination privilege – to remove one nominated housemate from the line-up and replace them with a housemate of their choice.
| | Week 2 | Week 3 | Week 4 | Week 5 | Week 6 | Week 7 | Week 8 | Week 9 | Week 10 | Week 11 | Week 12 | Week 12 | Week 13 | Week 14 | Week 14 | Nomination points received |
| | Week 2 | Week 3 | Week 4 | Week 5 | Week 6 | Week 7 | Week 8 | Week 9 | Week 10 | Week 11 | Fake | Real | Week 13 | Day 99 | Day 100 (Finale) | Nomination points received |
| Aleisha | Kate Jamie | Jamie TJ | Zoran Thomas | Nick Rebecca | Jamie Rebecca | Travis Joel | Daniela Jamie | Thomas Travis | Michelle Jamie | Michelle Zach | Daniela Zoran | Daniela Zach | Zoran Joel | No Nominations | Winner (Day 100) | 16 |
| Zach | Not in House | Not in House | Not in House | Not in House | Not in House | Not in House | Exempt | Exempt | Zoran Jamie | Zoran Michelle | Joel Zoran | Daniela Billy | Travis Joel | No Nominations | Runner-Up (Day 100) | 13 |
| Travis | Zoran Emma | Zoran Emma | Emma Thomas | Nick Thomas | Jamie Rebecca | Thomas Zoran | Laura Daniela | Jamie Thomas | Daniela Joel | Zach Daniela | Daniela Zach | Daniela Zach | Zoran Zach | No Nominations | Evicted (Day 99) | 23 |
| Billy | Exempt | TJ Zoran | Zoran Thomas | Susannah Rebecca | Jamie Rebecca | Travis Andrew | Laura Daniela | Zoran Travis | Michelle Daniela | Daniela Zoran | Daniela Zach | Daniela Zach | Zoran Joel | No Nominations | Evicted (Day 99) | 14 |
| Zoran | Bodie Aleisha | Bodie Emma | Rebecca Jamie | Rebecca Nick | Jamie Rebecca | Travis Andrew | Laura Daniela | Andrew Billy | Billy Michelle | Michelle Daniela | Zach Daniela | Daniela Billy | Billy Travis | Evicted (Day 92) | Evicted (Day 92) | 47 |
| Joel | Kate TJ | TJ Susannah | Susannah Travis | Jamie Nick | Jamie Rebecca | Travis Aleisha | Laura Andrew | Jamie Billy | Jamie Zach | Zach Travis | Daniela Zach | Daniela Zach | Aleisha Billy | Evicted (Day 92) | Evicted (Day 92) | 18 |
| Daniela | Not in House | Not in House | Not in House | Not in House | Exempt | Travis Andrew | Andrew Laura | Andrew Joel | Billy Zoran | Billy Aleisha | Zoran Billy | Billy Aleisha | Evicted (Day 85) | Evicted (Day 85) | Evicted (Day 85) | 30 |
| Michelle | Not in House | Not in House | Not in House | Not in House | Not in House | Not in House | Exempt | Exempt | Zoran Zach | Aleisha Zoran | Evicted (Day 78) | Evicted (Day 78) | Evicted (Day 78) | Evicted (Day 78) | Evicted (Day 78) | 12 |
| Jamie | Emma TJ | Emma Bodie | Emma Aleisha | Emma Nick | Emma Zoran | Emma Aleisha | Joel Aleisha | Billy Joel | Joel Zoran | Evicted (Day 71) | Evicted (Day 71) | Evicted (Day 71) | Evicted (Day 71) | Evicted (Day 71) | Evicted (Day 71) | 35 |
| Thomas | Kate Aleisha | Zoran Aleisha | Demet Hayley | Aleisha Emma | Zoran Travis | Travis Andrew | Laura Travis | Andrew Travis | Evicted (Day 64) | Evicted (Day 64) | Evicted (Day 64) | Evicted (Day 64) | Evicted (Day 64) | Evicted (Day 64) | Evicted (Day 64) | 13 |
| Andrew | Exempt | Bodie TJ | Demet Emma | Nick Susannah | Zoran Rebecca | Daniela Jamie | Daniela Laura | Jamie Thomas | Evicted (Day 64) | Evicted (Day 64) | Evicted (Day 64) | Evicted (Day 64) | Evicted (Day 64) | Evicted (Day 64) | Evicted (Day 64) | 14 |
| Laura | Not in House | Not in House | Not in House | Not in House | Exempt | Daniela Emma | Zoran Andrew | Evicted (Day 57) | Evicted (Day 57) | Evicted (Day 57) | Evicted (Day 57) | Evicted (Day 57) | Evicted (Day 57) | Evicted (Day 57) | Evicted (Day 57) | 12 |
| Rebecca | Bodie TJ | Emma Bodie | Emma Zoran | Emma Joel | Joel Emma | Emma Travis | Evicted (Day 50) | Evicted (Day 50) | Evicted (Day 50) | Evicted (Day 50) | Evicted (Day 50) | Evicted (Day 50) | Evicted (Day 50) | Evicted (Day 50) | Evicted (Day 50) | 21 |
| Emma | Kate Jamie | Rebecca Jamie | Thomas Rebecca | Rebecca Susannah | Rebecca Jamie | Daniela Jamie | Evicted (Day 50) | Evicted (Day 50) | Evicted (Day 50) | Evicted (Day 50) | Evicted (Day 50) | Evicted (Day 50) | Evicted (Day 50) | Evicted (Day 50) | Evicted (Day 50) | 37 |
| Susannah | Jamie Bodie | Bodie Aleisha | Emma Aleisha | Emma Jamie | Emma Zoran | Evicted (Day 43) | Evicted (Day 43) | Evicted (Day 43) | Evicted (Day 43) | Evicted (Day 43) | Evicted (Day 43) | Evicted (Day 43) | Evicted (Day 43) | Evicted (Day 43) | Evicted (Day 43) | 11 |
| Nick | Not in House | Not in House | Exempt | Joel Emma | Evicted (Day 36) | Evicted (Day 36) | Evicted (Day 36) | Evicted (Day 36) | Evicted (Day 36) | Evicted (Day 36) | Evicted (Day 36) | Evicted (Day 36) | Evicted (Day 36) | Evicted (Day 36) | Evicted (Day 36) | 9 |
| Hayley | Exempt | Bodie TJ | Demet Emma | Evicted (Day 31) | Evicted (Day 31) | Evicted (Day 31) | Evicted (Day 31) | Evicted (Day 31) | Evicted (Day 31) | Evicted (Day 31) | Evicted (Day 31) | Evicted (Day 31) | Evicted (Day 31) | Evicted (Day 31) | Evicted (Day 31) | 2 |
| Demet | In White Room | Exempt | Susannah Thomas | Evicted (Day 29) | Evicted (Day 29) | Evicted (Day 29) | Evicted (Day 29) | Evicted (Day 29) | Evicted (Day 29) | Evicted (Day 29) | Evicted (Day 29) | Evicted (Day 29) | Evicted (Day 29) | Evicted (Day 29) | Evicted (Day 29) | 4 |
| Bodie | Kate Rebecca | Zoran Rebecca | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | 14 |
| TJ | Zoran Kate | Susannah Hayley | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | Evicted (Day 22) | 9 |
| Kate | Emma Bodie | Evicted (Day 15) | Evicted (Day 15) | Evicted (Day 15) | Evicted (Day 15) | Evicted (Day 15) | Evicted (Day 15) | Evicted (Day 15) | Evicted (Day 15) | Evicted (Day 15) | Evicted (Day 15) | Evicted (Day 15) | Evicted (Day 15) | Evicted (Day 15) | Evicted (Day 15) | 11 |
| Notes | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 11 | none | 12 | 13 | |
| Source | | | | | | | | | | | | | | | | |
| Nominated (pre-save and replace) | Bodie, Emma, Kate | Bodie, Emma, TJ, Zoran | Emma, Thomas, Zoran | Emma, Nick, Rebecca | Jamie, Rebecca, Zoran | Aleisha, Andrew, Daniela, Emma, Jamie, Thomas, Travis | Andrew, Daniela, Laura | Andrew, Billy, Jamie, Thomas | Aleisha, Billy, Jamie, Michelle, Zoran | Daniela, Michelle, Zach | Billy, Daniela, Travis, Zach | Billy, Daniela, Travis, Zach | Billy, Joel, Travis, Zoran | none | none | |
| FNL Winner | Emma | Hayley | Andrew | Demet | Andrew | Billy | Andrew | Jamie | Daniela | Daniela | Joel | Joel | Billy | Travis | Zach | |
| Saved | Emma | Emma | Thomas | Emma | Zoran | Aleisha | Andrew | Jamie | Michelle | Daniela | Travis | Travis | Billy | none | none | |
| Nominated For Eviction | Bodie, Jamie, Kate | Bodie, Joel, TJ, Zoran | Demet, Emma, Zoran | Andrew, Nick, Rebecca | Jamie, Rebecca, Susannah | Andrew, Daniela, Emma, Jamie, Rebecca, Thomas, Travis | Daniela, Joel, Laura | Andrew, Billy, Joel, Thomas | Aleisha, Billy, Jamie, Joel, Zoran | Aleisha, Michelle, Zach | Aleisha, Billy, Daniela, Zach | Aleisha, Billy, Daniela, Zach | Joel, Travis, Zach, Zoran | Aleisha, Billy, Travis, Zach | Aleisha, Zach | |
| Evicted | Kate 55% to evict | TJ 54% to evict | Demet 65% to evict | Hayley Chosen to evict | Susannah 47% to evict | Emma 76% to evict | Laura 43% to evict | Andrew 24% to evict | Jamie 25% to evict | Michelle 73% to evict | Daniela 12 of 21 points to evict | Daniela 12 of 21 points to evict | Joel 7% to evict | Billy 14% to evict | Zach 49% to save | |
| Evicted | Kate 55% to evict | Bodie 7% to evict | Demet 65% to evict | Nick 51% to evict | Susannah 47% to evict | Rebecca 4% to evict | Laura 43% to evict | Thomas 22% to evict | Jamie 25% to evict | Michelle 73% to evict | Daniela 12 of 21 points to evict | Daniela 12 of 21 points to evict | Zoran 1% to evict | Travis 18% to save | Aleisha 51% to save | |

### Nomination Notes

* ^Note 1 : Andrew and Hayley won immunity in this week's nominations, after managing to keep their relationship a secret from their Housemates. However, they were to nominate as a couple until further notice; they could however be nominated as individuals. At this time Billy was only a guest in the House and could not nominate. Thomas was penalized with a nomination point after failing to properly nominate.
* ^Note 2 : As a new Housemate Demet was exempt from nominating this week. Billy became an official Housemate and allowed to nominate for the first time. This week was a Double Eviction.
* ^Note 3 : As a new Housemate Nick was exempt from nomination this week.
* ^Note 4 : Hayley was evicted when she and Andrew were forced to choose one of them to leave the House. Daniela and Laura entered shortly after her Eviction. Emma and Aleisha were both penalized a nomination point by Big Brother for discussing nominations. In the nominations twist, prior to leaving the House, Friday Night Games winner Demet – who was evicted the night before nominations – provided a choice of Housemates whom she wished to save and whom she wished to nominate. Once her selection were applied, Emma was saved from nomination, and Andrew was the replacement nominee.
* ^Note 5 : As new Housemates, Daniela and Laura were exempt from nomination this week.
* ^Note 6 : This week, Housemates were asked to nominate the two Housemates they saw as the biggest threat to them winning Big Brother. This week was also a double eviction and the five or more Housemates with the most points faced the public vote.
* ^Note 7 : New Housemates Michelle and Zach were exempt from nominations for the first two weeks of their stay. Thomas was penalised one nomination point for poor reasons of nominating.
* ^Note 8 : As there was an unbalanced ratio of males to females in the House (8 males and 3 females), the females were all awarded immunity.
* ^Note 9 : Aleisha automatically faced the public vote this week after failing her secret mission as part of the Police Academy task.
* ^Note 10 : Joel was awarded immunity from nomination this week after passing a task the previous week. Big Brother gave Australia 24 hours to vote for whom they want to nominate. The top vote recipient had two point cast against them in nominations, and the second top vote recipient received one point. The public chose Michelle (77%) and Daniela (15%).
* ^Note 11 : This week the nomination process was reversed, with the public nominating and the Housemates evicting. However, the Housemates still nominated and were unaware that these nominations did not count. The public chose to nominate Daniela (26%), Billy (16%), Zach (14%) and Travis (13%). On Day 85 the Housemates nominated, but this time it was to evict, and Daniela was evicted with 12 out of 21 points, receiving two points from every other Housemate.
* ^Note 12 : The final four Housemates were all nominated for a Double Eviction.
* ^Note 13 : The final two Housemates, Aleisha and Zach, both automatically faced the public vote to determine the winner; whoever received the most save votes (or the least evict votes) would be the winner.

## Weekly summary and highlights

The main events in the Big Brother 7 house are summarised in the table below. Evictions, tasks, and other events for a particular week are noted. Events in the house are listed in order of sequence.
Weekly summary :
| Week 1 | Entrances | On Day 0, Aleisha, Andrew, Bodie, Emma, Hayley, Jamie, Joel, Kate, Rebecca, Thomas, TJ and Travis entered the Big Brother House. On Day 2, Susannah and Zoran entered the house, having both received the highest number of votes to enter via public voting. Billy, also known as Mr. X, entered the house as a guest on Day 2. |
| Week 1 | Tasks | On Day 2, housemates began their first weekly task. In the first part of the task, one by one, each housemate was called to the Diary Room in order to take a compatibility test. The test involved Big Brother giving a housemate two options, such as 'Saint' or 'Sinner', with the housemate asked to choose the option that best reflects their personality. In the second part of the task, Big Brother revealed that two of the housemates were in a secret relationship to each housemate and that they each had one week to decipher who these two housemates were. Housemates thought they were the only one to be given the task. Billy's Tasks: On Day 2, Hayley's ex-boyfriend Billy was told that before he went to bed, he had to say "Goodnight Hayley, sweet dreams". On Day 3, Billy received his next task; he had to wait on Hayley from the moment she woke up until the moment she went to bed. The following day, when Billy was asked to take a housemate with him to tend the animals, he had to choose Hayley. On the fifth day, Billy had to become Andrew's best friend. Friday Night Live: On Day 6, housemates competed in the first Friday Night Live of the season. The theme was 'Gladiators' this week. Emma was the winner. As a result of her win, she was allowed to choose one other housemate to take into the Rewards Room later that night and had to choose between three boxes which each contained a mystery prize; She decided to take Aleisha with her into the Rewards Room and won a New Zealand holiday. |
| Week 1 | Twists | On Day 0, Big Brother revealed to the housemates that there was zero prize money. To the viewers, Gretel Killeen confirmed that two more housemates would enter the house the following night according to who received the highest number of votes to enter from the public. It was also explained that two housemates entering the house on Day 0 had been tasked with hiding their true relationship. Hayley and Andrew were revealed as being in the secret relationship on Day 2 to the viewers; If they failed to hide their true relationship, one of them would be evicted. Hayley's ex-boyfriend, Billy, entered the house later that day to complicate their secret task (see Billy's Tasks). On Day 2, Cruz, Demet, Harrison and Kara entered The White Room in a last chance attempt to become a housemate this season. Big Brother told them that the person who stayed in the room the longest would become a housemate. |
| Week 1 | Punishments | On Day 7, Kate received her first official strike for showing aggression towards fellow housemate Emma. |
| Week 2 | Tasks | On Day 8, Hayley and Andrew's relationship was revealed to the rest of the house and as the majority of housemates did not guess that it was these two housemates that were in a secret relationship, the house passed the first weekly task and added $50,000 to the total prize money as a reward. Billy's identity, as Hayley's ex-boyfriend, was also revealed. Hayley and Andrew earned immunity from the first round of nominations this season too, as a reward for successfully completing each of their secret tasks. |
| Week 2 | Twists | On Day 8, Cruz, Demet, Harrison and Kara (from The White Room) were offered money in exchange for their departure. Big Brother told them that the first housemate to press the red button would walk away with the money on offer; Cruz later pressed the red button and therefore left behind The White Room and his chance to become a housemate this season with $750. |
| Week 2 | Punishments | On Day 8, as a result of constant rule breaches, such as exceeding the four-minute shower limit, housemates were forced to earn their weekly food budget. For every rule break during the week, they would be fined one dollar and as a further punishment, housemates were supplied with porridge as their only source of food until further notice. |
| Week 2 | Exits | On Day 8, Cruz left The White Room (see twists). |
| Week 3 | Tasks | |
| Week 3 | Twists | |
| Week 3 | Punishments | |
| Week 3 | Exits | |
| Week 4 | Tasks | |
| Week 4 | Twists | |
| Week 4 | Punishments | |
| Week 4 | Exits | |
| Week 5 | Tasks | |
| Week 5 | Twists | |
| Week 5 | Punishments | |
| Week 5 | Exits | |
| Week 6 | Tasks | |
| Week 6 | Twists | |
| Week 6 | Punishments | |
| Week 6 | Exits | |
| Week 7 | Tasks | |
| Week 7 | Twists | |
| Week 7 | Punishments | |
| Week 7 | Exits | |
| Week 8 | Tasks | |
| Week 8 | Twists | |
| Week 8 | Punishments | |
| Week 8 | Exits | |
| Week 9 | Tasks | |
| Week 9 | Twists | |
| Week 9 | Punishments | |
| Week 9 | Exits | |
| Week 10 | Tasks | |
| Week 10 | Twists | |
| Week 10 | Punishments | |
| Week 10 | Exits | |
| Week 11 | Tasks | |
| Week 11 | Twists | |
| Week 11 | Punishments | |
| Week 11 | Exits | |
| Week 12 | Tasks | |
| Week 12 | Twists | |
| Week 12 | Punishments | |
| Week 12 | Exits | |
| Week 13 | Tasks | |
| Week 13 | Twists | |
| Week 13 | Punishments | |
| Week 13 | Exits | |
| Week 14 | Tasks | |
| Week 14 | Twists | |
| Week 14 | Punishments | |
| Week 14 | Exits | |

## Friday Night Live

| | Week 1 | Week 2 | Week 3 | Week 4 | Week 5 | Week 6 | Week 7 | Week 8 | Week 9 | Week 10 | Week 11 | Week 12 | Week 13 | Week 14 |
| Theme | Gladiator | Japanese Game Show | Bling Bling | On the Beach | Almost Famous | Outback Adventure | Jungle | Mexican | Nightmare | Back to School | Pirate | 70's Disco | Seven Deadly Sins | Quest for Glory |
| Winner | Emma | Hayley | Andrew | Demet | Andrew | Billy | Andrew | Jamie | Daniela | Daniela | Joel | Billy | Travis | Zach |
| Winner's Choice | Aleisha | Andrew | Travis | Joel | Thomas | Zoran | Jamie | Thomas | Michelle | Zach | Zoran | Travis | Zach Billy | — |
| Major Prize | New Zealand Holiday | Domestic Holiday | Watches | Holiday | Egypt Holiday | Vietnam Holiday | Borneo Holiday | South America Holiday | Cambodia Holiday | Vietnam Holiday | Thailand Holiday | South Africa Holiday | South America Holiday | — |
| Minor Prize | Scooter | Scooter | Scooter | Scooter | Scooter | Scooter | Nintendo Wii | Nintendo Wii | Scooter | Nintendo Wii | Scooter | Nintendo Wii | Nintendo Wii | — |
| Booby Prize | Baby Shoes | Porridge | Zebra Underpants | Bucket & Spade | Hiking Boots | Kangaroo Poo | Half-Eaten Banana | Chili Con Carne | Skeleton Foot | Whoopee Cushion | Pirate Videotape | Leo Sayer Greatest Hits CD | Seven Deadly Pins | — |
Italic and bold denotes prize won.
* In the 13th Friday Night Games, as the winner, Travis was allowed to bring two guests into the Rewards Room.
* Andrew has won more Friday Night Games than any other housemate, in any season that "FNL" has aired in on Big Brother.
* As an extra on the final Friday Night Games, Zach (the winner) won the chance to spend a few minutes with his best friend Zac, Zack, or Zachary who Big Brother used in the last mini-task, instead of the usual prizes.

## Special shows
### Game On

"Game On" was a live show that was broadcast on Day 2 (23 April 2007). The results of the overnight wild-card SMS vote were revealed. Susannah and Zoran were the chosen two out of the six wild-card housemates. The remainder of the wild-card housemates were isolated in the White Room. The Daily Show was incorporated into the first part of the live show. Hosted by Gretel Killeen.

### Full House

"Full House" was a live show that was broadcast on Day 8 (29 April 2007). It was aired in the timeslot usually occupied by Eviction shows. The relationship between Andrew and Hayley was revealed to the house, as was Billy's role to impede Hayley's task of keeping that relationship secret from the other housemates. Hayley and Andrew were deemed by Big Brother to have successfully kept their relationship a secret from the housemates for the week (fewer than half of the housemates had successfully guessed their relationship) which meant they could both stay in the house. Big Brother also revealed that for succeeding in their task they had earned $50,000 to be added to the prize money, which was previously set at zero. Big Brother also tempted the wildcard housemates to leave the White Room by offering a sum of money to them (A$750), which Cruz accepted. Hosted by Gretel Killeen.

### Wild Card Entry

"Wild Card Entry" was a live show broadcast on Day 11 (2 May 2007). The White Room housemates had left the room and, dependent on their success completing various challenges, one of them would enter the Big Brother house as a housemate.
* The first round was determined by nominations from the White Room housemates; Kara was eliminated with two votes.
* In the second round each housemate had to collect three major items of clothing and dress a model while airborne on a large steel frame.
* The third round was determined by nominations from the Big Brother housemates. To cast their vote they placed a plastic ball into the corresponding tube for either Harrison or Demet. Demet won with 8 votes against 6.
Hosted by Gretel Killeen.

### Golden Key

"Golden Key" was a live show broadcast on Day 18 (9 May 2007). This special was to select the winner of the Starburst Golden Key. The show's producers had selected five finalists from the original 100 Golden Key winners after an intensive audition process. The chosen finalists were Carolyn, Nick, Natalie, Angie and Laura. To select which would become a housemate contestants chose one of five numbered discs randomly from a bag. Then they were allocated a clear box of confectionery depending on which disc they had selected. One box also contained a golden key, and the contestant whose box contained the key, Nick, was designated the new housemate. He entered the house during the show, while the housemates were conducting their weekly task performance. Hosted by Gretel Killeen.

### Intruder Alert! / Intruder Eviction

"Intruder Alert!" was a live 90-minute special that aired on Day 31 (22 May 2007). Hayley was evicted from the house during the episode. Later new housemates Daniela and Laura entered as intruders. Hosted by Gretel Killeen.

### The Works

"The Works" was a scheduled Big Brother special focusing on behind the scenes footage that was planned to air on Day 46 (6 June 2007). The show would have been recorded on the same day at Network Ten's Pyrmont studios. The show was later cancelled for unapparent reasons.

### Live Eviction 6 / Intruders Incoming

The 6th Live Eviction show was a 90-minute eviction and intruder special that aired on Day 50 (10 June 2007). It featured a double eviction and introduced the two new intruders, Michelle and Zach. Michelle entered and met the remaining housemates. Zach remained in the Rewards Room, awaiting entry during UpLate later that evening. Hosted by Gretel Killeen and Mike Goldman.

### Kyle in the House

"Kyle in the House" was a special version of the daily show that aired for 60 minutes before Live Eviction 11 on Day 85 (15 July 2007). It featured a recap on Kyle Sandilands' entry to the house and during the show Big Brother set Sandilands a special task to "challenge the housemates".

### Live Eviction 11

The 11th Live Eviction show aired immediately after the special daily show on Day 85 (15 July 2007). The remaining housemates were forced to vote out one of the nominated housemates, and Daniela was evicted with a total of 12 points, meaning that every housemate except herself had given her two points. Hosted by Gretel Killeen.

### Gretel Goes In

The final nomination show on Day 93 (23 July 2007) was a special where the housemates did not need to nominate and instead Killeen went into the Rewards Room to interview the housemates individually and ask questions supplied by the viewers. Hosted by Gretel Killeen.

### Quest For Glory

The final Friday Night Live show on Day 97 (27 July 2007).

### Final Sunday Double Eviction

Final Sunday Double Eviction was the last Eviction of Big Brother 2007, and was broadcast live in front of an audience on Day 99 (29 July 2007) from Dreamworld, and was hosted by Gretel Killeen.

### Finale

The season finale aired on Day 100 (30 July 2007) in which Aleisha was announced the winner and Zach the runner-up. It was the closest winning margin in Australian Big Brother history of less than 500 votes and the announcement of the winner was delayed by an hour after the voting lines closed as votes were rechecked. At one point during the final episode, there was just 64 votes difference between the last two housemates. Aleisha is the second female to win Big Brother Australia.

## Reception

The 2007 launch had the smallest ever opening episode audience in all seven Australian Big Brother series, and a 14% drop from the previous year's opening night. Network Ten came second overall but lost the night to Nine Network's 60 Minutes. Nevertheless, with an average of 1.549 million viewers, the opening night was Ten's best Sunday night of the year, to date. The series finale was expected to have just under two million viewers, a 10% drop from 2006's finale. Network Ten later announced that the peak audience for the finale was 2.3 million viewers. Crikey's media reporter Glenn Dyer stated that Ten's reported figures were exaggerated, and that the average number of viewers was 1.791 million for the entire show, not 1.9 as Ten had stated, which only accounted for 8.30pm – 10pm. He also said that while the peak of 2.3 million viewers beat the 2006 finale, the average audience was fewer than the 2006 finale's average 1.88 million viewers. In June, the series ratings were down 5% overall and 13% in the 16- to 39-year-old demographic compared to the previous year's series.
By the series' final week in July these figures had dropped a further 5% and 2% respectively. The Daily Show and Live Eviction Show were down 100,000 and 200,000 viewers respectively. Overall the season attracted around one million viewers each night. The show received several bad reviews. The Sunday Telegraph stated that "nothing could get worse for the ratings-challenged BB". The Daily Telegraph named the series "Most. Boring. Ever." The Sunday Herald Sun said that the show "has committed the worst television sin – it is boring." eBroadcast Australia considered the program "left lifeless and fading" after the finale. Christian Today thought the entire season "a slump in rating". One review in The Age praised the series, pointing out the highlights of the season and claiming "[Big Brother] is as enjoyable as watching a quality sitcom or drama". Another Age journalist disagreed, commenting that the 2007 series "just didn't sparkle". In comments reported in a newspaper article, evicted housemate Emma reflected on the program's reduced ratings and noted that whilst inside the house the housemates joked about whether the show had been cancelled.

### Ratings

| | Viewers (millions) 5-City Metro | Viewers (millions) 5-City Metro | Viewers (millions) 5-City Metro | Viewers (millions) 5-City Metro | Viewers (millions) 5-City Metro | Viewers (millions) 5-City Metro | Viewers (millions) 5-City Metro | Viewers (millions) 5-City Metro | Viewers (millions) 5-City Metro | Viewers (millions) 5-City Metro | Viewers (millions) 5-City Metro | Viewers (millions) 5-City Metro | Viewers (millions) 5-City Metro | Viewers (millions) 5-City Metro |
| | Week 1 | Week 2 | Week 3 | Week 4 | Week 5 | Week 6 | Week 7 | Week 8 | Week 9 | Week 10 | Week 11 | Week 12 | Week 13 | Week 14 |
| Sunday | 1.55 | 1.10 | 1.02 | 1.06 | 1.00 | 0.98 | 1.01 | 1.03 | 1.09 | 1.01 | 1.01 | 1.13 | 1.07 | 1.09 |
| Sunday | | 1.24 | 1.16 | 1.19 | 1.12 | 1.08 | 1.10 | 1.13 | 1.16 | 1.09 | 1.07 | 1.19 | 1.11 | 1.17 |
| Monday | 1.04 | 1.01 | 0.98 | 1.02 | 0.95 | 0.90 | 0.98 | 1.01 | 1.01 | 0.99 | 1.00 | 1.06 | 1.08 | 1.79 |
| Monday | 1.12 | 1.10 | 1.07 | 1.13 | 1.05 | 0.99 | 1.06 | 1.07 | 1.09 | 1.04 | 1.06 | 1.10 | 1.13 | |
| Tuesday | 0.96 | 0.98 | 0.93 | 0.97 | 1.10 | 0.89 | 1.13 | 0.96 | 0.91 | 0.87 | 0.89 | 0.94 | 0.97 | |
| Wednesday | 1.00 | 1.08 | 1.10 | 1.00 | 0.97 | 0.94 | 1.04 | 1.03 | 1.07 | 1.01 | 1.00 | 1.06 | 1.09 | |
| Thursday | 1.04 | 1.01 | 1.00 | 0.98 | 0.94 | 0.91 | 0.99 | 1.00 | 1.04 | 0.97 | 0.99 | 1.04 | 1.01 | |
| Friday | 1.01 | 1.06 | 1.02 | 1.06 | 1.03 | 0.98 | 1.04 | 1.07 | 1.06 | 1.01 | 1.03 | 1.07 | 1.09 | |
| Friday | 1.09 | 1.12 | 1.07 | 1.11 | 1.08 | 1.03 | 1.09 | 1.10 | 1.11 | 1.07 | 1.07 | 1.17 | 1.23 | |
| Weekly average | 1.10 | 1.08 | 1.04 | 1.06 | 1.03 | 0.97 | 1.05 | 1.04 | 1.06 | 1.01 | 1.01 | 1.08 | 1.09 | 1.35 |
| Running average | 1.10 | 1.09 | 1.07 | 1.07 | 1.06 | 1.05 | 1.05 | 1.05 | 1.05 | 1.04 | 1.04 | 1.04 | 1.05 | 1.07 |
| Series average | 1.07m | 1.07m | 1.07m | 1.07m | 1.07m | 1.07m | 1.07m | 1.07m | 1.07m | 1.07m | 1.07m | 1.07m | 1.07m | 1.07m |
Ratings are rounded to the nearest ten thousand. Uplate shows are not included in official averages. Figures in bold include consolidated viewing figures.

## Controversy

* The Daily Telegraph had reported on 21 April 2007 – the day before the show's launch – that an internet hacker claimed to have obtained the names of the 18 housemates from the official Three Mobile website: "Aleisha, Andrew, Brodie, Cruz, Demet, Emma, Harrison, Hayley, Jamie, Joel, Kara, Kate, Rebecca, Sussannah, Thomas, TJ, Travis, and Zoran". A Three Mobile spokeswoman denied the claims and told the media that the names were not "hacked" or "leaked" from the Three Mobile site, refusing to confirm whether the housemates names' and photos were real.
* Because of the pre-recorded nature of launch shows, members of different forums and websites decided to have live streams using mobile phones allowing people to listen to the show before it was broadcast on national television. Because of this, recording of the show stopped until the streaming was stopped. Eventually, production staff offered prizes if audience members would pick out people from the crowd using phones to broadcast the show.
* The Daily Telegraph had reported that Big Brother producers had failed to censor offensive language when housemate Bodie told other housemates he was "dense cunt" during the PG-rated Daily Show on Tuesday 24 April 2007.
* The Sunday Mail on 29 April 2007 had reported that the parents of Mormon housemate Rebecca, were upset that their daughter was under siege from fellow housemates over her decision not to join in their party antics.
* The Daily Telegraph had reported on 4 May 2007 that housemate Kate's situation regarding her pregnancy and pre-eclampsia was known by Network Ten and producer Endemol Southern Star before her entry to the house. This subsequently led to her breakdown regarding the "Newborn Group Task".
* The Courier-Mail, The Daily Telegraph and The Age had reported that backpackers, students and other young people were being paid as little as $50 a day cash-in-hand for stunt work for the Friday Night Live Games episodes of Big Brother. It is claimed that they were used to test the various stunts that the housemates would have to perform. The Office of Workplace Services and other government departments were investigating the claims to see if the producers Endemol Southern Star were in breach of any laws or regulations.
* Week 8 of Friday Night Live had a "Mexican" theme where housemates had to throw liquid-filled balloons at a Mexican Flag, with the intention of drenching the fabric. This use of the Mexican flag provoked criticism from Mexican officials. In a letter to the Australian Communications and Media Authority and production company Endemol Southern Star, Mexico's Foreign Ministry complained about the offensive use of the country's flag. "(We) demand they take adequate measures to avoid this type of incident in the future", the ministry said. The show's producers later issued an apology.
* The Daily Telegraph reported on 3 July that host Gretel Killeen is being accused of being aggressive towards some housemates, in particular Jamie during his eviction interview after he suggested the video package shown of him crying and sitting alone was biased towards the negative. Later she was criticised for being particularly aggressive towards Rebecca, Thomas and Jamie. Killeen was also criticised for hypocrisy having aggressively questioned why Jamie did not intervene when Michelle argued with Aleisha, and yet she was receptive towards Michelle herself on her eviction, and even rationalised Michelle's behaviour during the argument. Michelle was also named the most unpopular housemate ever to inhabit the Australian Big Brother House.
* Former housemate Susannah had left her partner and started dating fellow housemate Thomas after leaving the BB house. It was reported that her ex, Anthony Murphy, had blamed the reality TV show for the demise of their relationship.