We got the idea of nature almost encroaching. It's incredibly lush, incredibly green, we really popped the colors, lots of deep reds and the greens. It really has a sense of color which is unsettling actually and people are like, "It's so colorful."

Another thing we wanted to do, a lot of shows or movies that are in the future or the post-apocalyptic are very bleached, desaturated desert environments and we wanted to do the opposite of that. There's always talk about Chernobyl and the world that environment has recovered has become this idyllic, bizarrely refuge for wildlife.

It was very challenging in terms of making sure that everyone is distinct. Also, we wanted to have some Asian influences as well, so that it really is a mashup. We want evidence of our presence in this world, so you'll see there's an interest in technology, that there are not complex electronics. There's electricity in this world, but computers, circuits don't work.

Also, when we did "Smallville," we didn't have an opportunity to interact with people who watched the show. And see what they had to say and listen to criticism and listen to praise at the same time. So a lot of this is a new experience and it's very interesting and rewarding for us. I think we get honest feedback. You get hate. You get a lot of love as well. And I'm actually very curious what people think of the show. For us, it's been a passion project of ours, and an incredibly challenging show to make.

Also, having grown up in England, you walk around London, you're passing relics that are a thousand years old - the wall of London is a thousand years old. You don't talk about it, it's part of your everyday life. The idea that people are in these environments and talking about the past and what happened, it's irrelevant. It's all about living and in this world it was about surviving.

There's a level of action unlike anything else on television. AMC always makes distinctive television and I think that certainly fits that requirement.

I think that people are really hungry for original content. I think there's a sense of reboots and remakes, and we're lacking in any sense of originality in media. So, I think the people who want something like this which has a graphic novel feel or comic book feel but that is designed and created for the medium of television, I think that is something is very appealing to a lot of people.