Would be great to have a 'mark all watched' when a season is completed. Having to click through every episode 7 seasons worth of Big Bang and 9 seasons worth of Supernatural got really tedious, really quick.
You're right, we should definitely have this!
I was thinking about adding a "mark as watched up till this episode" button to the table on the watchlist page for a specific show (like this one). Clicking it would mark that episode and all episodes that aired before it as watched.
How does that sound?
I think that's an excellent alternative to my original suggestion.
Well done!
All done! Check the same watch list page, and you'll see an icon appear when you hover over any episode row. Click it, and that episode and all previous ones will be marked as watched in one go. :)