I prefer the one with Mrs Richards, or the anniversary one, the one where the wedding party was happening, the one with the chef who got drunk, or the builders...
When I was in Year Six or so they were being repeated on weeknights, and everyone seemed to have watched the one with the wedding party because we were talking about it practically all day in school the day after
Must've been parents saying "oh I remember that old show, you'll like this, let's watch it!!!"