The BBC production of Sense and Sensibility c1980. We were allowed to sit in the horse-drawn coach they used - I was about 7.
Sylvester McCoy as Doctor Who at Blists Hill in Ironbridge.
When I was working in a university library in 1993, it was used for some scenes of a shortlived detective series. We library assistants were greatly amused by the fold up chairs they had with artiste written across the back.
As I grew up without a TV and didn't have one for much of my young adult life, I never actually saw the programmes except S&S, which we went to see at a friend's house (and I now have on DVD.)
I've been to some recordings of Radio 4 shows, but not TV.