Yes, good episode and great series. Having Romero, Hooper and Carpenter all talking in detail about their work, was a great addition. Gatiss has been an excellent host.
I approve of his dig at modern style horror. 'Torture porn' (aren't we on the 8th 'Saw' or something ridiculous). and slasher movies based on horny/obnoxious American teens who get bumped off one by one, don't do it for me. I want horror films that have something to say.
I agree the best stuff is definitely coming from Asia right now. But i think Mark was a bit harsh to lumber UK film horror as being as bad as the current crop of US horror. In the last 10 years I think on the whole British horror has done quite well. It's no golden age, but we've had in the past decade.
Dog Soldiers
28 Days Later/28 weeks Later
The Descent/Descent II
Eden Lake
and taking into account comedy horror
Shaun of The Dead
Some of those films were both critically and commercally very successful. Not normally do you see UK films being successful enough to spawn sequels. Also Hammer has been resurrected, so I think it's been a pretty good decade for UK horror (I can't remember any UK horror films from the 80s and 90s garnering so much commercial and critical success).