If the thought of wearing—and paying for—expensive, active 3D shutter glasses is keeping you from taking the 3D TV plunge, you'll be glad to know that Vizio plans to introduce a 3D TV next year that uses cheaper polarized glasses.

The company is a showing a prototype of the TV this week at the Consumer Electronics Association's summer show in New York City. The TV, a 65-inch LCD model with an edge LED backlight, uses a film layered over the front of the screen that interlaces the image into left- and right-eye views. When viewed with lightweight, polarized glasses—much like the ones you get in movie theaters—the two images resolve into a single three-dimensional picture.

These new polarized TVs won't be available until the first quarter of 2011, Vizio tells me, and polarized TVs are a bit more expensive to manufacture. But the good news is that the passive polarized 3D glasses are very inexpensive—a TV theater owner told me they cost less than 50 cents—so outfitting a whole family with glasses will be far less costly than it would be with active shutter glasses.