Board Thread:Questions and Answers/@comment-29432626-20161125015919/@comment-28881578-20161125124835

Big Brother is a social experiment reality show where in a number of strangers with different personalities were to live in a house without having contact from the rest of the world. It started in Netherlands in 1999 and the contestants called housemates, were to live together for 100 days, supervised by the unseen voice of Big Brother. Each week, Big Brother gives tasks,challenges and twists and those may affect their stay and relationship towards other housemates inside the house. Each week, Nominations take place where in they have to tell to Big Brother who they want to be nominated for the eviction. Whoever have the highest points will be nominated. After a week, the Eviction will take place where the public gets the chance to vote on who among the nominees should be evicted from the house, via SMS Messaging. Housemates must survive all the tasks, the challenges and the eviction in order for them to reach the Final Night.

That's the basic info about BB. Almost all Big Brother shows world wide follow the original premise with a twist of their own with the exception of Big Brother US, which changed the format completely on its second season due to a strong competition with Survivor, the most popular reality show at that time, BBCAN then followed BBUS' format when Canada had their English version of BB.

So for short, BBUS and BBCAN have different more like revised format, with the exclusion of the public voting during eviction and removing the Weekly Tasks which originally challenges the social capabilities of the housemates like how they work together or such, instead they replaced it with HOH competitions which is like the "survival of the fittest". They also added Alliances and groups, as well as the "Open Strategizing" in which the original format prohibits to talk about the nominations and such.