That I can't quite remember....
I remember watching it as a child in the late eighties/early nineties probably on a weekend afternoon and there was a friendly bear and man, possibly a park ranger, with a big bushy black beard.
It wasn't Gentle Ben, I think the show I'm thinking of would possibly have been made in the early 80's.
It's entirely possible this was just one episode of a tv series that I remember clearly 