TV watchdog Ofcom has launched an investigation into a series of biphobic comments made by Christopher Biggins.

The pantomime star was booted out of the Celebrity Big Brother House in August after receiving a number of warnings from the show’s producers regarding his behaviour.

During a conversation about sexuality, Biggins said: “The worst type though is, I’m afraid to say, the bisexuals – what it is is people not wanting to admit they are gay.”

Biggins also claimed HIV had been “spread by bisexuals” who had sex with infected people “and brought it back to their own families in America, and that’s how it became a worldwide disease”.

Ofcom today revealed it had received 20 complaints from upset viewers and will launch an investigation into Biggins’ time on the show.

“We’re investigating whether a contestant’s comments about bisexual people were offensive and breached generally accepted standards,” a spokesperson said.

The 67-year-old had been the bookmakers’ favourite to win CBB before his removal from the show, despite also making anti-semitic comments to fellow contestant Katie Waissel.

Although the scenes were not aired – and so cannot be investigated by Ofcom – it is believed he joked about the holocaust after the Jewish singer told him she was not in the house to represent the community.

“You better be careful or they’ll be putting you in a shower and taking you to a room,” Biggins allegedly responded.

He attempted to apologise for his offensive behaviour following his removal from the house – but this is not the first time he has been criticised for his views on the LGBT community.

The entertainer opposed the introduction of equal marriage, claiming in 2012: “I’m very anti-marriages, because I think that is for heterosexual couples. We can’t get rid of everything”.

He re-stated his opposition to same-sex marriage last year, claiming it’s “a step too far”