I've just watched it this morning. There's another episode next week (I assume at the same time).
I really thought it was brilliant - an amazing insight into the minds of people with this illness.
Felt very sorry for the mum who daren't get pregnant again incase it induced a massive mania for her. And those poor American boys and all their medication - honestly, to be taking around 7 different types of medication (incl sleeping pills, antipsychotics etc. etc.) just seemed way way too much.