I'd give The Larkins a go. You might like it - although I don't think it's dated that well myself. And I'd be surprised if you didn't enjoy For The Love Of Ada (although I've not seen the film, so can't really judge on how alike it might be).
Re the OFAH theme, we must have different issues of the DVD, because it's the actual theme tune of S01E01 on mine, not just heard within the episode.