Add the total duration of each series and...

Add a feature of the average of ratings of each item in each year:
2008:  6.2/10
.
.
2020: 7.8/10
2021: 7.2/10

Allow the user when he watches the item again to make 2nd and 3rd ratings for each item each calculated globally separately on its own, and allow the user to know when in time exactly was each rating he made.