is it very popular in the UK and why so?

Thanks for your answers!
do you like it and why so?

It about a bunch of people that live under one roof with cameras watching there every move ( NOTHING ) is private they do different challenges to see who get to be HOH head of house..It's has gotten to be a dumb show i used to like it there are just better shows on then this one.

Its not that good...........

People from the general public audition and are then chosen to live in the big brother house for 13 weeks or so. They're controlled by big brother and are constantly being watched with cameras. They get given tasks to complete and every week someone they nominate someone to leave and the people with the most votes are put up for eviction and the nation vote for who they want to leave.
Big Brother like to mess with them a bit tho.
It's basically a social experiment.

"big rother" started in holand as a reality tv show and was found to be very popular and is now a yearly spectacle (literally) in many countries worldwide

the format is people are put into a house for a number of weeks and every second of their lives are filmed showing relationships and the likes from start to finish every week the housemates vote for who they want evicted and that person leaves but recently they have put twists in the lot by adding other housemates or putting other housemates back in or in a secret part of the house without their prior knowledge making the show more conveluted and appealing to watch

it is extremely popular over here in the uk but i personally don't watch it as much as some but do enjoy watching on occasions