Sony unveil 3D TV you wear on your head.

'It will never go on sale,' was the general thought. 'Concept!' sneered others.
Sony has proved the doubters wrong, though - not only is the headset real, it's on sale today.
The headset launches first in London's Harrods, but it will roll out to Sony Stores across the country this year.
The point? The screen technology inside - OLED - is widely used in phones, but despite Sony  championing the ultra-fast-moving TV technology, it's still far too pricey for large sets at a normal price.

Sony's demo versions of 3D sets have drawn awed stares at trade shows courtesy of their crisp blacks and fast screen updates, but they have never gone on widespread sale.
The HMD - it stands for 'Head Mounted Display' - allows you to experience the effect of a large, high-contrast OLED screen by siting two small OLED screens directly in front of your eyes.
If you find that 3D films at the cinema give you a thumping headache, you might also find that the glasses offer the first 3D experience you can digest.

The two panels are completely separate, so it's the first home 3D TV set that is free of 'crosstalk' - when the two 3D images interfere with one another.
Crosstalk is responsible for many people's negative experiences of 3D TV, including flickering and headaches caused by the screens.
The 3D glasses will plug into any 3D source, such as games consoles and 3D Blu-Ray players.
Don't expect to be overhwelmed with choice, though - 3D Blu-Ray discs are still fairly thin on the ground.