Terry and June was one of the classic British sitcoms in my opinion. You knew what to expect - and ain't that just so typical! :) Unlike modern sitcoms with utterly contrived plots, this show is still a breath of fresh air. How lovely not see or hear remarks about bodily functions or not to see a family PERPETUALLY late for breakfast or a family with impossible teenagers. And therein is the secret: Terry & June was based on a middle class couple living in relative harmony in stead of today's strained plots with the 'de rigueur' dysfunctional family (made to look hip).
Personally, I vote the "Bridge to far" episode as one of the best. In a way, Terry's antics reminds me of Basil Fawlty - both sometimes getting almost impossibly embarrassing!
Terry & June comes highly recommended. Have your tea and biscuits ready!