I made a thread about this 2 weeks ago but I may have poorly asked the question / described the bug. Now, since the thread (http://www.tvmaze.com/threads/1113/profile-stats-e...) is dead, I think I can properly ask the question / describe the bug:
If you look on your Stats page you see on the right side your all time stats and on the bottom you see your timed stats. These timed stats are in certain timed sections (week, month, year) to give people stats for that week/month/year. My observation is that you cannot see your all time stats in the same function. Most Watched Shows and Most Watched Networks (Which should be defaulted to use all time stats, since they are independent of time, which I believe is the main bug with this feature) utilize shows marked as watched individually rather than bulk. This is a bug because it even though the system has no way of knowing when you watched a TV show, that doesn't mean you never watched it. Shows added in bulk should still be represented in "Most Watched Shows" and "Most Watched Networks" because you still watched it, regardless of when.
While I now know Hours Watched and Episodes Watched are reliant on times, that should have no effect on Most Watched Shows and Most Watched Networks (Because it's not "Most Watched Shows/Networks of the week/month/year, it's just Most Watched).
tl:dr: The Word Most signifies all time. It's not it's not "Most Watched Shows/Networks of the week/month/year, it's just Most Watched and as such the categories "Most Watched Shows", "Most Watched Networks", and even "Most Watched Genre's" are bugged out.