Ofcom have launched an investigation in Celebrity Big Brother's Bit On The Side this week.
The telly watchdog has opened up a probe into an episode of the CBB spin-off that aired on Saturday, September 5.
It's understood that the investigation concerns one complaint about about supposed transphobia in one of the show's VTs.
In the clip, members of the public were invited to guess what a celebrity housemate was famous for, picking from a supplied a choice of answers.
The Daily Mirror reports that one of the given answers that concerned what Farrah Abraham was famous for was "Winning a transsexual contest".
TV regulator Ofcom said that the sole complainant was "concerned that this presented being a transsexual as a joke".
A spokesperson for Ofcom commented: "We're investigating whether potentially offensive comments in this programme were justified by the context in which they were presented".
Meanwhile Ofcom has revealed it has received three complaints about the end of series brawl between Farrah, Aisleyne Horgan-Wallace and Janice Dickinson that temporarily took Bit On The Side off the air during its final week.
Ofcom said it was still to assess whether or not the objections warranted an investigation.