The six stars of Celebrity Big Brother 2001 pose together outside the house
4. For most of Big Brother’s UK run, the same house at Elstree Studios in Borehamwood was used every series – but that wasn’t the case in 2001
Big Brother’s first two series – and first celebrity run – actually took place at a specially-built house in Bow, East London near 3 Mills Studios.
This was actually where the first series of RuPaul’s Drag Race UK was also filmed, but like Big Brother, they also moved to Elstree Studios for subsequent years.
5. The Big Brother house barely changed from the civilian series