I hope it is okay to just guess his name. I never know these but he looks like the man from the episode "Is Jeremy quite safe?" I looked it up and his name is John Challis.
Is that him?
Too easy to guess ONLY FOOLS etc. Could it be an episode of Minder?? ???
THE BILL or EVER DECREASING CIRCLES ??? ???
He looks young in the photo so its not GREEN GREEN GRASS. :-\
CORRIE or Juliet Bravo??
Z CARS ??? ???
Doctors or Doctor Who?
Or there is 'In sickness or in Health' or 'Doctor Snuggles'.