I have noticed that all seasons of any TV series have the same IMDB rating. Would it be easy for you to calculate an average rating for each season? I guess this would apply to web and mobile as well as the desktop software. Usually there will be a drop in the rating, especially between the first and second season.
I definitely understand your request, however, I’m afraid not, we only get the “tv series” rating, as shown on IMDb for the entire show. I have taken note of your request.
(I have to say that I myself have struggled with this in the past being an avid “voter” on IMDb, I kinda don’t want to rate every episode, but I rather rate per season 
)