Did squad numbers come in with the premier league, it was around that time.
I remember when sky first put the score in the top corner of the screen too, there was hell on about it.
Edit: iirc every pitch in the premier league has a slight camber, to aid drainage. Except Southampton which is flat. We're the only club to have a noticeable slope, and at maybe 4' to 5' it would be considered significant even in league 2.