I'll keep an eye out for it to be shown in the UK. We do get a fair few programmes like this from the US showing on our channels.
On one of our channels a few weeks ago (BBC) there was a docu called The Voices in My Head which I thought would be important to watch, given what my son has told me on occasion. Well, I'm ashamed to say I couldn't get past the first ten minutes. I found it too hard and too close to home. I keep wanting to give it another go but don't know if I can.
Anyway, here's a link if anyone is interested in watching it. I'm not sure if it'll work with you being outside of the UK but give it a try or maybe YouTube?
BBC Three - The Voices in My Head