Channel 825, TV5, about an hour on Saturday and Sunday mornings is kids' hour, about half and half European and Canadian stuff. Followed by a music show, Acoustic, for adults, so teens might like that.
DVDs are definitely a better option though I know that that's not what you want to hear.
If not, of course, you could hit Youtube and explore, loads on there.
We have moved back to UK from Switzerland and are keen for the DC to continue speaking French.
I have found a fab babysitter who will come and chat with them once a week, but would like them to watch French TV. Is there a French version of CBBC? Preferably that we could watch online or via Virgin TV as we don't have a sat dish.
Or can you recommend any programmes that they might like. They enjoy natural history type programmes so maybe something like that.