Launch Night Twists from Around the World?

[Joelston]

I'm not really a follower of International BB except USA, and was wondering if any other series had opening night twists?

[ILoveTRW]

Australia
BB2 - Had to build their own furniture
BB3 - 2 Houses
BB4 - $1,000,000 Prize Fund
BB5 - Twins Enter
BB6 - Mother and Daughter Enter + Mole
BB7 - Boyfriend and Girlfriend Enter
BB8 - Housemates only allowed in the garden and have to decide the first evictee