I rewatched the first 6 series before series 7. Definitely got it more second time round and was just as enjoyable as watching it the first time.
Did the exact same thing.. seems a lot of other did too
Yeah you pick up on so much you overlooked/ missed the first time around.
Now I'm doing it all again before season 8.
Definitely see it as one of the few shows I could see myself rewatching again in the future too, many years from now... especially if it sticks it's landing (I'm certain it will).