I keep writing books about why TV is good. There's nothing more fun to me than steering people toward something that I really loved that I think they might not otherwise see. That's the reason I do what I do.

I'm such an old fart that I started buying books on film and TV and radio and music when, for television, the entire shelf of books was only a couple of them. You go into the '70s before you start getting books on TV that you start wanting to collect. And by the time that you get to something like the Brooks and Marsh book it's invaluable. My house got hit by lightning in 1989 and burned down. And I got more than a half dozen Brooks and Marsh books sent to me by friends immediately, as though that's what you need more than clothes or food. That's how treasured that book was.

I wrote my own first book about the defense of television as an art form in 1992. It was harder to make the argument then. Now it seems absolutely a given. You can argue about when the Platinum Age Of Television begins, but I don't think that anybody can argue that it's not here.

Even though I'm a writer and I love books and writing books is my favorite thing to do, when you teach, and you can go through the history of children's television, and I show certain things, the students' jaws just drop. You're never going to hit the hammer quite as hard in print.

I keep writing books about why TV is good. There's nothing more fun to me than steering people toward something that I really loved that I think they might not otherwise see. That's the reason I do what I do.

I'm trying to accept the idea that there's a different definition of what matters now. The rating for James Corden at 12:30 at night doesn't matter as much as the number of hits he gets on YouTube when he goes driving around with Adele. There are old dogs out there doing new tricks, and I got to recognize them.

Downton Abbey is the most popular drama in the history of public television. When the whole of the TV universe is fragmenting, that isn't just impressive. It's almost impossible. But here we are.