10 new houseguests move in to the Big Brother house. We are introduced to Amma, Brian, Bubble, Paul, Helen, Narinder, Dean, Elisabeth, Penny and Stuart through a series of biography clips and we then see them enter the house, in small groups. During their first day together, Penny and Elisabeth compete for the mom role, Brian admits that he is gay and the houseguests get a surprise when they find a den in the backyard. ~A National Obsession Begins!~ Big Brother 2 launched a first for Big Brother UK history, Live Streaming! Although it had been launched for Big Brother 2000 via the Internet, Live Streaming was to prove a real hit when it began on the Channel 4 digital station E4. Viewers could even have an Interactive service which would enable them to read news from the house, select a choice of 2 different live feeds and highlights and also to vote to evict a housemate.

In a special 1-hour episode, the houseguests nominate for the first time - live. Davina McCall speaks to friends and family of the houseguests and shows some clips from the last day in the house. The nominations are as follows: Amma - Paul and Penny Brian - Helen and Elisabeth Bubble - Paul and Penny Dean - Narinder and Penny Elisabeth - Penny and Helen Helen - Bubble and Narrinder Narinder - Helen and Bubble Paul - Amma and Helen Penny - Helen and Amma Stuart - Penny and Narrinder This means that Penny and Helen are the first two nominees for eviction, and now the public must vote. Meanwhile, Davina McCall reveals that the person to replace the first evictee will be...Josh.

The house is rocked when new arrival Josh enters the house, and Big Brother lets them in on a secret hot tub in the backyard. Meanwhile, Josh's announcement that he is gay changes Brian's attitude, Narrinder and Helen get in to a heated argument, the group is set a new weekly task: to memorise 15 facts about each other, Bubble opts for a bald head and Brian changes bedrooms and moves in with the girls,

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