I honestly think part of it was because there were so few channels (pre-Satellite) so entertainment was limited.
Now my kids can go to on-demand and watch pretty much any cartoon.
Even Bilko was a treat when it came on once a week. With the box set I found myself flicking through some of the episodes.
As for British sitcoms…the ones I used to enjoy now seem a bit dated.
Pheonix Nights was good and used to be part of jokes in work next day.