Yup as far as i can telll 3d tv is filmed in the same way although projected a little differently.
With 3d movies they project the 2 images onto the screen using 2 diifferent polarized filters. The 3d glasses we wear are polarized this way too, so one eye gets the image from one angle and the second from the other.
I don't know much about the specifics of how 3d television but it sounds like right now you basically get alternating frames in each eye. Like left lens goes black, right is clear with tv giving a frame viewed from angle 1 and then right lens goes black and left goes clear showing the same frame viewed from angle 2. Because it's changing back and forth so fast they basically unite to give a common image. That said I'm pretty sure they are working on developing tvs that used the polarized method as well as some that won't need glasses at all.