This one is a slow, shambling walk of a challenge in progress. Originally, like many others, I got to around season 6 I think. Which I think is where a lot of people dropped it – friends have said it got too depressing. I stopped before the point where most gave up because I moved and lost my recordings.
Anyway, now my kids (young adults now) are old enough, we watch this together. It’s slow as one likes it less than the other. And as said on a different page, one is at uni now.