We have added a feature neamed bookmark thread. With that you can follow what you have watched. Just bookmark the thread from the top of the thread and visit Thread Bookmarks - FriendsKorner - Pakistani Media Forum to see what you have bookmarked / Watched.
You can save all those threads where you have watched the episodes to follow what you have watched already and what you didn't.
Screenshot below shows how you can bookmark / watched a thread.
Then Visit this link which is located in your settings.
Thread Bookmarks - FriendsKorner - Pakistani Media Forum