Speaking as someone who works in the UK TV industry, I'll be honest: a lot of people in TVland are gay. As a result, I suspect that TV is probably one of the more gay-friendly environments to work in. In so far as no one gives a toss. I'd be very surprised if the US TV industry was different in that respect. Having not seen the new series, tbh, I can't comment on the overtones or whatever, but RTD really isn't the only openly gay producer. It's just that it's more known to the wider world because he's been in the public eye more.