Lock was good on TV Heaven, Telly Hell.
But I thought he was disppointing on Argumental. I thought Sargeant was much better. Hound and Brigstock were also much better in their roles which isn't something you're likely to hear much
I thought the first 3 seasons of Argumental were better too, Sergeant was a much better host and it had more of a "debate-y" feel about it with Brigstocke and Hound as captains.