LG is to use the forthcoming CES trade show in Las Vegas to unveil, what it claims is, the world's largest 3D Ultra Definition TV. At 84-inches it's actually 1-inch smaller than Sharp's 8K4K monster, debuted at IFA in September, and features a lower pixel count (with a 4K2K resolution of 3840 x 2160), but the Sharp set wasn't compatible with 3D content.

Certainly, LG believes that it will turn a few heads at CES: "LG is pushing the limits of home entertainment innovation with this 3D UD TV,” said Havis Kwon, president and CEO of LG Electronics Home Entertainment Company. "We are bringing together all our Smart TV and 3D knowledge in the 3D UD TV in order to demonstrate to the CES audience that LG is committed to being the world’s leading brand for immersive home entertainment in 2012 and beyond."

At present, while it also features LG's Slim and Narrow Bezel Design and Smart TV infrastructure, there's no indication when this may become a fully-fledged consumer product - after all, gaining access to 4K2K content outside of Japan is tricky - but at least it's ready to roll out as and when there is demand for such a thing.

There's certainly no need to worry that the Full HD TV you bought over Christmas will soon be obsolete.

What do you think of "Ultra Definition"? Do we need it? And will it just be a resolution stopgap until 8K4K sets arrive, like 720p was before 1080p? Let us know in the comments below...