Breaking Bad’s episode 'Ozymandias' has dropped from a perfect 10/10 to 9.8 on IMDb after 13 years. The dip follows a ratings clash with HBO’s 'A Knight of the Seven Kingdoms', whose Episode 5 briefly hit 10. Fans of both shows reportedly downvoted each other’s episodes, triggering the change. 'A Knight of the Seven Kingdoms' is 'Game of Thrones' prequel.