We can all admit that TNG, like all the other programs, have weak episodes. But, isn't it a positive way of looking at it if one thinks it's a good thing that there are few weaker ones, on my way through TNG I usually skip certain episodes, quite many actually... But, after years of not seeing a particular episode, it's almost like watching a completely new TNG episode. This doesn't work if you know the series inside out after gazillion views, but at least in my case this ”new TNG” trick works.