AT MOST FOUR. Save yourself the pain and frustration. It has gotten so bad. Like Game of Thrones bad. The original creator is still writing the episodes but I feel like all the negative reception (from s1-s3) was because the show is depressing, and that the producers ordered him to make every episode have a happy ending. I feel like Charlie Brooker is on a short-leash and he just doesn't care any more. The show feels completely uninspired, its signature tone has been flipped upside-down, and hardly any episodes since season 3 had any depth whatsoever. It's pretty sad because this was one of my favorites. Hate to see it happen like this but I would never recommend season 4, especially season 5 to anyone.