The short version (since I’m mobbloging): parents are very concerned about factual programmes, but in truth there is no future. It’s clear that even if one gave broadcasters something like How2 for free, they wouldn’t put it out.
No, the future of factual children’s media looks less like tv, and more like the thing I’m off to now: a showing of a couple of dozen SciCast-type films, made by children and facilitated by the National Physical Laboratory.
Science is in a unique position to make this happen more widely. I’m quite excited.