A quote from Neil Gaiman on writing for Doctor Who.
“The wonderful thing about books and comics is your budget is infinite: it costs the same to draw one thing as another, to write one thing as another…That’s not true of television, where a budget might stretch to prosthetics or CGI, but not both…
“Truthfully, I’m not grumbling, I’m loving writing Doctor Who, and so far, each draft really has been better than the one before.”