Game of Thrones from season 7 (being generous, you could expand that to 6) on, of course.

 

I'm still trying to claw my way through. This new season is painfully awful.

 

I watched the first season and while it wasn't amazing I quite liked it.

I planned watching more some time in the future.

Is it worth watching atleast season 2 and then stop or does it immedia totally drop in quality after the first season?

 

Oh man, I could rant about this for hours. At least there were signs as early as season five GoT that it was going to hell already, and spent three more seasons getting there for sure. Heroes was the homecoming queen that everyone loves that suddenly turns into a Methany and starts stealing from her family and friends, and ends up dead in a gutter a year later. Worst complete destruction of a show I've ever seen.

I've only watched S1 of Sabrina, and quite enjoyed it. Hearing here (and in other places) that it goes to shit so suddenly is a bummer, and makes me lose any enthusiasm for going on with it.

 

At least Heroes had the excuse of the writer's strike destroying it.