(Sorry, someone was bound to post that).
I just don't see the appeal here; the "successful franchise" has been petering out with awful, straight-to-video titles since the fifth installment (of nine so far) and box office receipts start with $14.56 million for the first film and decline from there.
The first film isn't even that exceptional, and the sequels have proven that exploring the world of Pinhead and the Cenobites can only provide diminishing returns. A television series just sounds like a bad idea. Hopefully it can get Doug Bradley some work outside of the convention circuit, though.