▁women ▁with ▁the ▁bro th el ' s ▁clients , ▁as ▁well ▁as ▁amateur ▁cou ples ▁that ▁visited ▁the ▁building , ▁and ▁foot age ▁of ▁the ▁film ing ▁of ▁adult ▁produ ctions ▁that ▁took ▁place ▁on ▁site . ▁The ▁name ▁of ▁the ▁club ▁was ▁a ▁reference ▁to ▁the ▁television ▁series ▁Big ▁Bro ther , ▁in ▁which ▁contest ants ▁live ▁in ▁a ▁house ▁with ▁cam eras ▁in ▁every ▁room , ▁recording ▁their ▁every ▁action . ▁ ▁History ▁Loc ated ▁at ▁N ád ra ž ní ▁ 4 6 ▁in ▁the ▁Sm ích ov ▁district ▁of ▁Prag ue , ▁Big ▁Sister ▁opened ▁as ▁a ▁bro th el ▁in ▁May ▁ 2 0 0 4 , ▁and ▁the ▁Internet ▁operation ▁began ▁in ▁April ▁ 2 0 0 5 . ▁It ▁was ▁established ▁for ▁about ▁€ 5 ▁million ▁by ▁two ▁Aust rian ▁business men , ▁one ▁being ▁Her i bert ▁Gre in ix . ▁They ▁had ▁been ▁active ▁in ▁the ▁Prag ue ▁night ▁life ▁for ▁seven ▁years ▁and ▁also ▁own ▁other ▁Prag ue ▁establish ments , ▁including ▁the ▁Prag ue ▁sex ▁club ▁K 5 . ▁ ▁The ▁start ▁of ▁the ▁Internet ▁operations ▁in ▁ 2 0 0 5 ▁was ▁followed ▁by ▁a ▁heavy ▁public ity ▁campaign ▁across ▁Europe , ▁leading ▁to ▁some ▁ 4 0 ▁media ▁reports ▁in ▁German , ▁English , ▁French , ▁Czech , ▁Italian ▁and ▁Russian , ▁including ▁reports ▁by ▁the ▁largest ▁TV ▁stations ▁in ▁Germany ▁and ▁the ▁largest ▁newsp apers ▁in ▁Germany ▁and ▁Switzerland . ▁One ▁angle ▁of ▁the ▁company ' s ▁advert