Upgrading the site

So I have an idea for specialising the series on the site. We have votes but the current votes work for the entire series so I suggest a change is made and every single season of a series has its own rating. For example imagine a series that has 4 season and the first season is not that appealing to the people so they give low rating but next seasons are better due to the gained box office of the first one or whatever so the second season deserves a higher rating.