Looks like Comcast is positioning itself to be the one to beat when it comes to 3D entertainment - although what they're actually doing about that isn't entirely clear.
According to Multichannel News, Comcast has "plans to offer more advanced formats that offer a richer 3D experience." And thats about all we know of their special 3D takeover plans for now. Comcast reps also go on to self-proclaim themselves as as established "3D content provider," which I'm not sure about as I've certainly never heard anyone say that about them before.
While a specific road map or timetable hasn't been confirmed yet, some 3D entertainment-specific channels should be popping up on our cable TV boxes by summer. (You know, the time of year when we should be outdoors actually doing something and not sitting at home on the couch watching TV, but I guess you have to go home some time.)
So far, standard definition 3D entertainment on Comcast has been free (and viewers can pick up free glasses at designated locations), while HD costs a buck more.
Some titles that Comcast is already delivering in anaglyph 3D programming include Jonas Brothers: The 3D Concert Experience, My Bloody Valentine, The Final Destination and Coraline. (With the exception of the last film, I'm not sure any of those needed to be in 3D.)