It would be nice if there was a way to mark episodes with an unknown date to exclude them from the specific statistics.
Like these:
But they could still count in these:
As for the history they could be in the last page. But if that is not possible there is no way them.
I’ve been trying to clean up my stats a bit (removing things I watched just a couple of episodes in dates I know are wrong) and also have been getting the dates I have from TV Time (that I used before trakt), but doing this one by one will take a lot of time, and it will still be wrong because of the time.
I would gladly just go back e mark every single thing again with a unknown date though.