At least one of the men featured in cabler TLC's My Husband's Not Gay is a prominent proponent of “ex-gay” therapy.

The show, set to premiere Sunday, features four Utah Mormon men who are attracted to men but do not identify as gay.

My Husband's Not Gay follows three married couples – Jeff and Tanya, Pret and Megan and Curtis and Tera – and a bachelor, Tom, who are all devout members of The Church of Jesus Christ of Latter-day Saints living in Salt Lake City, Utah.

More than 120,000 people have signed a petition calling on TLC to cancel the upcoming special.

The program “promotes the false and dangerous idea that gay people can and should choose to be straight in order to be part of their faith communities,” wrote the author of the petition, Josh Sanders of Virginia Beach, Virginia.

GLAAD President & CEO Sarah Kate Ellis called TLC “irresponsible” for airing a show that “gives the idea that sexual orientation is a choice.”

TLC has shrugged off the controversy – saying that the show's stars “speak only for themselves” – but Truth Wins Out, a group opposed to therapies that attempt to alter people's sexuality from gay to straight, noted that many of the show's stars are affiliated with the Mormon “ex-gay” group North Star International.

Preston “Pret” Dahlgren (pictured with wife) is deeply involved with the “ex-gay” movement, having been a leader in at least two such ministries. He currently sits on the board of North Star. Dahlgren's wife, Megan, has been involved with three groups that promote “ex-gay” therapy, including North Star.

Jeff Bennion, another star of TLC's show, is a spokesman for North Star.

North Star boasts that all seven stars are part of its community.

“TLC's My Husband’s Not Gay won't air its first episode until January 11, but it's worth noting that at least one of its stars has a real professional incentive to use his new, national platform to promote a kind of 'treatment' that all major professional medical organizations agree is ineffective and can do serious harm to LGBT people,” Equality Matters' Carlos Maza wrote.