Getting back on topic, Who would be the best people to ask with regard to more info on these programmes and if perhaps a cable channel could dig them out and perhaps screen them on a dedicated channel.
Not a bad idea, Bahco, but a lot of effort could get used up in wild goose chases for missing media.
For example, there's a bloke/fan/nutter called Andrew Linton who's remaking a subtitled edition of "The White Horses" and releasing copies of DVD - see here.