Big Brother Africa 4 (known as Big Brother Africa: The Revolution) premiered on DStv's Channel 198 on Sunday 6 September 2009, at 17h00 Central African Time (CAT).
The 24-hour live feed was on Channel 198, with the daily show, live nominations and eviction shows on M-Net Africa (Channel 102) and repeats on Africa Magic (Channel 107).
On Sunday, 6 December 2009 the show was won by 27-year old Nigerian housemate Kevin Chuwang. Runners-up were: Emma da Rocha (2nd), Edward Moongo (3rd), Mzamo Chibambo (4th) and Nkenna Iwuagwu (5th).
Billed as "the biggest Big Brother Africa ever", the fourth season of the continent-wide reality show was known as Big Brother Africa: The Revolution.
The fourth season featured numerous major changes to the show, most notably the prize money, which doubled from previous years to $200,000; and the addition of two extra countries - Ethiopia and Mozambique - taking the tally of participating countries to a record number of 14.
There was also a new host - South African KB Ngakane (who hosted the second and third seasons) was replaced by Nigerian television personality I.K. Osakioduwa.
The number of cameras capturing the action doubled to 40, which together with 100 microphones gave the show twice as much sight and sound capability as in previous seasons.
The cameras included manned, remote and miniature 'lipstick' cameras with over 14,000 metres of cabling.
Another new feature of the season was the first ever open casting calls (previous castings were by registration only) in 18 cities, which formed the widest Big Brother Africa search to date.
In addition, the old rules banning conspiracy in the house were lifted and contestants were free to forge alliances, discuss strategy openly and play the game in an entirely different way.
The show also received an overhaul of the logo - see the link to the article below.
The voting procedure also underwent a transformation. This season audiences were asked to vote for the housemates they wanted to see remain in the series rather than the housemates they wanted to see leave the house.
The winner was chosen by voting audiences at the Live Finale on December 6.
Each week the Housemates undertook various tasks that aimed at stretching them to the limits in order to win a week's worth of budget that would enable them to buy groceries and other essential necessities.
Only Big Brother had the authority to assign the weekly tasks which mostly involved team play and perseverance. If the housemates displayed tremendous endurance, focus and willingness to succeed, Big Brother could wager up to 100% of their budget.
In Big Brother’s house, the rules remain as long as Big Brother said so. He/she could change them at any time to provide twists and turns.
To spice things up Big Brother deployed 12 field presenters to give feedback about each housemate’s hype and to get a grip on home ground. The presenters interviewed the housemate’s parents, friends and compile reports from eviction parties.
Head of House
Each week housemates competed against one another for the prestigious title of the Head of Household (HoH). The house leader’s benefits included seven days' immunity from eviction plus a luxurious night at the Glass House.
The season also introduced the Molotov Cocktail - a gift to eliminated housemates. As housemates were voted off they could throw a Molotov Cocktail at any remaining housemate as "punishment". Cocktails included punishments such as "One housemate has to cook all the meals for the week." and "One housemate has to wear a chicken suit for the week."
Week 1 (13 September 2009)
Week 2 (20 September 2009)
Week 3 (27 September 2009)
Voluntary exit: Jen Mussanhane. Jen asked to leave the show the week before - for "confidential" reasons and made her exit with Phil during the Sunday eviction show.
Week 4 (4 October 2009)
Week 5 (11 October 2009)
Week 6 (18 October 2009)
Week 7 (25 October 2009)
Week 8 (2 November 2009)
Week 9 (8 November 2009)
Week 10 (15 November 2009)
Week 11 (22 November 2009)
Week 12 (29 November 2009)
Week 13 (6 December 2009)
The order of elimination, leading up to the announcement of Kevinn Chuwang as the winner:
Emma da Rocha