Los Angeles, Jan 21 (TIWN) The 'Girls Next Door' star Holly Madison dated Playboy founder Hugh Hefner, who died in 2017 aged 91, from 2001 and 2008 and has revealed how "isolated from the outside world" she and her fellow Playboy Bunnies were.

Hugh Hefner’s magazine empire is being explored in a 10-part A&E docuseries premiering on Monday in the US titled The Secrets of Playboy, which will hit Aussie screens April 24 on Foxtel.  The special will feature new interviews with former Director of Playmate Promotions Miki Garcia, Hefner’s personal valet Stefan Tetenbaum, Bunny Mother PJ Masten, Playboy Mansion West resident Jennifer Saginor, numerous members of Hefner’s staff and inner circle, including his bodyguard and butler, as well as some of his past girlfriends including Madison, Bridget Marquardt and Sondra Theodore, among others.