TOD:
In addition to many of the shows mentioned, I would include Wodehouse Playhouse, perhaps my favorite TV show of all time, as least the first two seasons with Paulette Collins. Just funny stuff.
The two seasons of Blandings were also cherce.
And so many of the classic adaptations on Masterpiece: He Knew He Was Right, The Way We Live Now, Middlemarch, Our Mutual Friend, Daniel Deronda.