For a very small percentage of viewers like me, there is no 3-D.
I have been blind in my right eye since childhood and since 3-D needs stereoptic vision to "work", the point is moot.
Either it is a good movie/program or it is not, and 3-D cannot create quality when it doesn't exist--quality or 3-D. This is why I found Avatar lacking as film. I felt there was less there than met others' eyes.
If I were to watch a 3-D movie in 3-D with glasses which I have done (Kiss Me, Kate), I would see the film clearly, but in flat 2-D.
"If my life weren't funny, it would just be true. And that would be unacceptable."
--Carrie Fisher