Bit of a long shot, but what planted the seed of wanting to be a deer stalker was a program I stumbled across as a kid back in the 70s, may early 80s. I think it was a documentary following a deer manager, possibly a FC wild life ranger through his year.
I'm pretty sure it was not a Jack Hargreaves program but it may have been one of the Survival series or part of a series on country men. Also I think it was ITV rather than BBC.
Anyway, like I said, it was the first I had ever seen about a deer management, and coming from a non-shooting family it got me interested at a young age. I've trawled through youtube, but while I have seen many interesting programs (Jacks Buck, Jack's Stag with lea McNally in particular) I haven't found the one I vaguely remember. If I can get more information, may be I will have better luck tracking it down.
Not much to go one, but you never know the power of the Stalking Directory! - if any body has any clues let me know!