It was on TV last year, they've done TV adaptations of the first two books, and I'm pretty sure they went down well enough that they're going to do an adaptation of the third book as well, but I've no idea when it'll be airing.

Yes, I have to admit the heavy-going academic book has been somewhat neglected since I started reading the Strike books. I've already finished book 2 in the series, and am partway through book 3 now!