This 3D format is even more dead than top and bottom so far as the UK is concerned. But we feel obliged to mention it since it crops up now and then, most notably in the 3D option menus of some 3D console games, such as Avatar.
Checkerboard 3D was designed specifically for DLP (rear projection) televisions of the sort that are still kicking around in the US but have died out in the UK. It works by interleaving the images for the left and right eye into a single image, so that one pixel goes to your left eye while its neighbour goes to the right eye, and so on. The TV then separates these two â€˜mixed upâ€™ frames images out to produce half-resolution 3D.
If by some miracle or, more likely, some act of madness you somehow get your hands on an American 3D-Ready DLP TV, you will sadly also find that you need to buy a converter box that can translate side-by-side and frame-packed 3D signals into the checkerboard format the TV can use. Donâ€™t say you werenâ€™t warned!
That, we think, is that. Hopefully weâ€™ve managed to answer the questions many of you understandably have about what is arguably, when you look at it in any depth, the most confusing technology thatâ€™s ever hit the AV world.
And now, if you donâ€™t mind, weâ€™re off to have a little lie down. In 3D.