Kristian Digby, the popular daytime BBC television host, who was found dead at his home yesterday, is believed to have died after a solo sex game game went wrong.
The 32-year-old presenter of BBC1's To Buy Or Not To Buy was pronounced dead at the scene after the ambulance service was called to his house in Newham, East London, at 7.45am on Monday.
Police are officially treating the circumstances surrounding the death as "unexplained", but a post-mortem examination being conducted today is expected to show that he suffocated while deliberately starving himself of oxygen.
Sources close to the inquiry disclosed that a belt and a bag, items associated with autoerotic asphyxiation, had been removed from the property for forensic tests.
His body is said to have been discovered by his ex-partner, a former policeman.
His death has shocked fans, who left messages of condolences on Facebook and Twitter.
Digby was renowned for his zest for life, sense of style and charm.
He was a property expert with a substantial personal portfolio whose boyish enthusiasm launched him to fame as the face of To Buy Or Not To Buy. He also fronted the BBC's Holiday Show.
Digby, who was brought up in Torquay, Devon, worked on a number of daytime programmes including Double Agents, Living in The Sun, House Swap and Buy it, Sell it, Bank it.
He also directed shows such as Home Front, Fantasy Rooms, She's Gotta Have It and Girls On Top, as well as being series director on The Million Pound Property Experiment for BBC2.
On top of his property-based programming, he won a junior Bafta in 1997 for his short film Words Of Deception.
Colleagues described Digby as a "lovely guy" who brought energy and warmth to all the shows he presented.
Jo Wander, his agent and friend, said: "I am devastated by the loss. He was a lovely guy and a very talented presenter and director.
"I will miss him hugely and my thoughts at this time are with his family and his many friends. He will be sorely missed."