Big changes happened in the third year of Big Brother, with the debut of two houses incorporating a hidden pool, detached kitchen, and who could forget the outdoor showering for the first time?
Winner: Regina Bird. Prize money AU$250 000.
Finalists: Chrissie Swan (2nd), Daniel Mcinness (3rd).
Housemates: (in order of eviction) Irena Bukhshtaber, Jaime (HM swapover eviction), Carlo Marino, Leah White, Belinda Thorpe (left the house voluntarily), Ben Archbold, Claire Bellis, Joanne Ashton, Kim Drury (intruder), Daniel Small (Saxon), Jamie O'Brien (intruder), Vincent Amato, Patrick Flanagan.
Houseguests: Anouska Golebiewski (1st evictee, Big Brother UK Season 4).
We meet the new housemates, some of which are 'rejected' by Big Brother.
The square house wonder what's happened to Ben, who must spend the night on his own in the round house.
The square house get up to mischief to keep themselves amused. Ben and Jo complain about their noise neighbours.
Carlo silently irritates Vincent. The round house receives some new housemates.
Live crossover follows Patrick and Regina entering the round house.
The round house work out bedding arrangements for two new housemates, while members of the square house seem only interested in each other.
Another handful of housemates are thrown into the two houses.
Regina tries to work around Ben's snoring problem. Leah enters the round house and finds its not the household she expected.
Both houses host a 'seven deadly sins' party. Gretel speaks to some of the show producers about what happens behind the scenes.
Housemates from both houses continue to bond. Ben reveals some personal details about his previous relationships.
A love triangle is suspected in the round house. Big Brother angers housemates by not revealing nominations. Girls in the square house are warned about nomination colluding.
Upset after being given a strike by Big Brother, Irena considers leaving the house.
Saxon talks about his balls. Irena attempts to organise a mass walkout with the square housemates, despite their resistance.
Each house takes part in a talent show. Jo misses her boyfriend.
A drunk Saxon breaks nomination rules and upsets Belinda by unknowingly talking about her while she's in the room.
Big Brother issues warnings and strikes to housemates in both houses.
Jo is upset on her birthday. Irena's eviction leaves the square house ganged up on Belinda.
Big Brother annouces the nominees for the week, creating excitement. The houses attempt to communicate over the wall.
A pair of housemates swap from each house. Ben bonds with the boys but they irritate Regina. Leah is happy to have some one young in the same house as her.
Regina and Belinda unite to battle Ben's snoring and the dirty state of the square house. Regina gets frustrated at the lack of effort put into the skipping task.
A day of health scares in the square house involving Regina, Carlo and Vincent.
Jamie is evicted. Big Brother puts a ban on urinating in the garden.
Belinda gets upset when Carlo doesn't say goodbye during his eviction. Saxon shows some silent hatred towards Belinda. Over the night the wall between the two houses is removed.
Ben and Regina come to blows over his split personalities in the house, while the other housemates settle in as one big family.
The housemates reflect on Jo's party shenanigans with Vincent.
Jo and Ben come to an agreement after their confrontation the day before. There is mass uncertainty over the intentions of the other housemates, particular by Chrissie who admits she is scared of what Ben is doing.
Chrissie bans herself from talking to Ben. Daniel reveals a family tragedy.
Leah argues with Ben over age differences, but later Ben reveals he's causing trouble just for fun.
Ben infuriates more houseamates. Leah worries about the upcoming eviction.
Leah is evicted. Saxon and Ben are angry Belinda wasn't the one to go.
Ben's insults upset Jo, leading to threats of violence from Belinda. Belinda is then awarded two strikes.
Belinda secretly leaves the house through the diary room. News of her leaving leads housemates to reconcile their differences.
Housemates prepare for their musical task. Belinda says goodbye via video.
The house performs their musical number, leading to harmony among the housemates. The musical wigs become the source of much entertainment.
Saxon and Patrick battle for Jo's attention.
Jo is conflicted over he actions the night before.
Regina becomes sick again, prompting her to request another pregnancy test.
Belinda makes a brief visit to introduce the new intruders. Saxon and Jo continue bonding.
Claire and Saxon are given strikes for nomination violations.
Vincent rushes to the aid of Jo when she cuts herself, and then wonders if he is angering his girlfriend on the outside.
Jo reveals some personal details about her past. The housemates get annoyed at Kim's alcohol consumption while Kim feels alienated against the other personalities in the house.
Regina becomes worried about her increasing popularity and how it is perceived by people outside the house, including her husband.
Jamie goes in on a secret food stash with Regina and Patrick. Claire is evicted.
Jo's nomination leads to some extra attention from Saxon.
Regina gets upset about house politics and the other HM's reactions to her nomination. Kim feels like an outsider but the others insist they have accepted her.
Housemates throw Patrick a surprise party for his 30th birthday.
Housemates discuss their lives on the outside, and the audition process.
Saxon and Vincent nominate themselves on an alcohol ban for breaking the rules but can't handle the concequences when BB throws a cocktail party for the other housemates. Saxon gets emotional about Jo's possible eviction.
Jo stresses about her possible eviction.
Jo is evicted and Saxon cries and cries and cries some more.
With Jo out of the house the boys show their testosterone influenced sides.
Housemates start on a new task that seems easy, but looks can be deceiving.
A missing bottle of wine sends the housemates into a search frenzy.
Vincent's physical contact with the girls of the house becomes the focus of much discussion.
The housemates are thrown an animal costume party, but thoughts soon turn to the looming double eviction.
Regina is very sick after the animal costume party. Jamie tries to make bread in her place.
Jamie's consumption of milk and Milo angers the other housemates. After the double eviction of Kim and Saxon, the girls get speculating on the series winner, but their talk angers Big Brother.
The housemates are given a quiet day, while Daniel is given a personal challenge.
The housemates are split into haves and havenots, creating confusion about the specific rules of the task.
Cooking dinner for the haves creates some tension with Vincent.
The havenots get their revenge by sabotaging the have housemates dinner.
The end of the haves-havenots task gets the housemates gossiping about Vincent. HMs are asked to count M&Ms.
Patrick organises dinner the unconventional way. Housemates are treated to a screening of their song performance.
The haves/havenots task makes a dreaded return. Jamie is evicted.
The new havenots continue with their task chores.
Chrissie complains to Big Brother after she hears a camera man making derogatory comments about her behind a wall.
Regina begins playing practical jokes on the housemates as part of a task.
Regina continues her pranks. Anouska enters the house as a guest.
Vincent's intentions come into question when Anouska is around.
Anouska and Vincent regret their actions the night before... if they can remember them.
Vincent is evicted after a long, extended prediction.
A day of excitement in the house as discussion turns to bellybuttons and eating chocolate.
The topic of Chrissie's weight causes some friction between her and Daniel.
Anouska tries to uncover a potential relationship between Regina and Patrick.
Anouska continues to stir things up: this time about Aussie culture and her phobia of insects.
Anouska becomes homesick and wants to go home. Housemates are given a mini football task.
Housemates makes some parting photos for Anouska to remember them by.
The house becomes much smaller after Anouska and Patrick both leave.
The new house tasks brings out creativity... and creative blocks.
Chrissie and Regina contemplate Dan's personalties. The HMs perform their poems.
The housemates receive messages from home, and contemplate thier final days in the house
Housemates finish off their task with a costume parade and speech reading.
The housemates contemplate whether girls can win Big Brother.
Housemates discuss what they will do as soon as they get back to their lives outside the house.
Regina is crowned the queen of Big Brother 2003.
Relive Big Brother series of the past with our recap archive.
There's seasons and episodes missing!?
There are. Behind Big Brother began recapping the show in 2003 and since then we've lived through server crashes, legal threat shutdowns and all sorts of disruptions. As a result there are gaps in our recap archive.
We're slowly filling those gaps in, but we're looking for fans to help us. If you have a knack for writing down what you see and can cover episodes we're missing, please get in touch!