I never cared for the series, but since so many people like it, I figured I would include it in our analysis of episode quality. The ratings assigned to the various episodes (and tabulated into their respective seasons) demonstrate that Friends ended just at the right time, with Season 10 being the best overall. For Friends, there are no bad seasons!
Series Rating: 8.9
Average Episode Rating: 8.4
Season-Quality Correlation: 31%