Sports is one of the higher-demand types of programming. If ESPN can't get people to watch in 3D at a profitable level, it would seem unlikely that other 3D channels could possibly be profitable.

3D is currently simply a gimmick that doesn't offer any compelling value in increasing the viewing experience. On any standard TV provider like U-Verse or DirecTV, a 3D broadcast robs the picture of 1/2 the spatial resolution, requires uncomfortable glasses, and diminishes the color rendition and contrast because of the glasses' polarized lenses. This is a step backward in picture quality, not forward.