I used to love Playdays when I was really tiny and apparently I was so upset to miss it when I started nursery that my mum had to tape it for me :o I remember being incredibly upset when the video recorder chewed up a tape. I didn't know what it meant and I had nightmares about a video recorder that mangled things.
Loads of series on CITV and CBBC.
We also couldn't miss an episode of coronation Street. My mum watched it and when we went to my dad's we'd watch it to keep up :o
As an adult or teen probably the first serial that gripped me was Lost. The first thing I ever binge watched though was House!