Just when we had started to realise the true quality of High Definition Television our friends in Japan have developed ULTRA High Definition TV.

Yes that's a system that is 16 times the resolution of current HDTV offering a screen resolution of 7680 x 4320 pixels.

NHK, which have developed the system have also incorporated an advanced surround sound system that uses 24 loudspeakers.

At a recent demonstration in Amsterdam one onlooker commented that its was "fantastic....pin sharp with vibrant colours and fantastic sounding".

Unfortunately it may be up to 25 years before this technology becomes available to the consumer.