If you've come to Scriptuality looking for advice, you're in the wrong place. So, just pop over to James' place and get the complete picture. All truth is here.
Okay, this is a closely held secret, that all of us professionals try to keep you from discovering, but I'm going to break the code of silence and tell you: TV/film producers are looking for GOOD STUFF. That's it. Don't waste time wondering what genre or type of story is "in" right now, as by the time you write it, sell it, get it made and released, something else will be "in". Any time a producer or channel says "we're not looking for X, and Y doesn't work", ignore it - if they got a script that was fucking amazing, about X *and* Y, they'd snap it up. Things don't work until they do. The second you start trying to tailor something to the market, your script will suffer. If you have a story to tell, something you're dying to get out into the world, write that. Write from the heart, put your soul, blood, sweat and tears into it. And it'll get you noticed (if it's good, obviously). Producers want to see your original voice, not something you think they want, or a carbon copy of whatever's popular at the moment.
James Moran 2009.