Big Brother is a reality TV show that houses a group of people in a large house. This group of people will be isolated from the outside world even from their families. The goal of these individuals would be to avoid eviction from the house. This way, they will be able to when huge cash prizes. The evictions will be based according to the votes of the televiewers. Each country who franchised this reality show has made formats that suit their cultures and traditions well. However, the basic format remains.

The Big Brother Sweden edition actually started on 2000. They have broadcasted it at the same time as Norway Big Brother did. The two countries enjoyed an exceptionally high rating that they actually decided to co-produce a Big Brother show together. So in 2005 they actually created a Big Brother show together. This earned them more viewers and the ratings were good. In their 2005 show they mixed nine Sweded and nine Norwegians together in one big house. Initially, each country has separate houses for their housemates. However, after the first eviction, they have joined the two sets of contestants in one house but still on a two different team. They still have to fight for their individual immunity and can vote someone from the other team for eviction. In a twist during this first joint production, the viewers were given the choice, which among the three evicted housemates can go back to the Big Brother House.

Big Brother Sweden use cameras around the house to monitor how the housemates interact with each other. They are given tasks to accomplish and the success of these tasks will earn them a reward from Big Brother. This creates a big wave of curiosity among the viewers of television. Everything about the housemate's environment is controlled. There are no phones, televisions or even radios. It depends on the franchisees' prerogative on what materials to provide their housemates. Even books and special gadgets like ipod are not allowed. Some countries even went as far as not letting the housemates bring their toiletries. These factors bring out the vulnerability of an individual. This becomes especially for the Big Brother housemates because they would also have to deal with their new environment and adjust to their new housemates. The Big Brother show thrives when there are a conflict or love affairs those blossoms in such event.

In Big Brother Sweden and Norway, only the team captains can vote who among their team will be evicted. For example, if team Sweden won the given competition in the house, the captain of team Norway would have to nominate of them for eviction. Usually, when they bring in a new housemate, that housemate could nominate but the rest cannot nominate him or her. There are also twists involve in the show where some housemates are supposed to be evicted but in reality, they were just hidden in a secret room. One of Big Brother Sweden and Norway's ideas that really gets the attention of the public is the Big Brother Exchange program, where a housemate from Big Brother Thailand gets to exchange places with one of the housemates.