If it's the one I'm thinking of, it was a bit of a shit show. My memory is hazy, but as far as I remember, the producers had the TRA in the middle, and the feminists - who thought the had been invited as guests in their own right - were seated around the edge, more as if an audience.
The producers encouraged them to call out, but when they did, they were seen as being disrespectful / heckling - as the viewers didn't know they'd been encouraged to do this.
There was definitely discussion of it here. I hope old threads aren't being deleted.
Have you tried searching with Google, instead of the Mumsnet search?