Top-rated

Please see discussion beginning here:

https://community-imdb.sprinklr.com/conversations/imdbcom/imdb-title-subpage-redesign-faq-tv-episodes/64c2ad8cc2f32a2d3175d7b3?commentId=64f9571a2074f313ba229ee0&replyId=64f9791d2074f313ba22a2ba

ending (for now) with this post:

Col Needham indicates above that they will be adding back the link to the full list of episodes Top Rated, which could then be resorted by # of votes.

Meanwhile, you can do an Advanced Title Search, 

https://www.imdb.com/search/title/?sort=user_rating,desc&series=tt0096697

where the last part of the url (&series=...) was added manually. The title id (tt...) appears in the series' url.