This looks like it is actually heading in the right direction. The gestures appear well implemented, as could be expected from the boys of GestureTek. And the use of the Canesta Vision chips (more here) appears to be very effective as well. There is a decent review of this Hitachi TV over here at Take a Plunge…
The TV uses single-chip-based 3-D sensors provided by Canesta and the software created by GestureTek.
The Canesta’s sensors in the TV will collect a 3-D image of everything in the room. This 3-D technology helps it to recognize your hand from a printed hand on your t shirt or in any other object in the room. It recognizes different people and your hand when you stick out your hand for controlling the TV.
The gestures are simple and culturally sensitive. Gesturetek the software makes it easier for the users to control the TV according to their movements. You will also have alternate methods to control the TV.
A user of the new Hitachi TV set can get the control bar with just a wave of the hand
Spin the wrist – activate scroll wheel
Swipe left or right – browse options
Two hands – switch to a different function
As you can see in this next video, they created a wonderful GUI, an interface to go with the gestures. You are not left alone gesturing in thin air, no, you get good feedback on the screen about your gestures. This greatly resembles the old Playstation EyeToy (see here), also made by GestureTek.