s with screen sizes of over 40 inches have smart TV features that include access to a Samsung application store and a touch-screen control that allows users to watch TV while a Blu Ray movie is showing on the TV or show additional information relating to a linear TV programme. Accessories include 3D glasses and a Skype-certified high-definition camera. A separate HD Blue Ray player has a 3D sound effect that moves the sound to follow the 3D picture. Blue lasers operate at a wavelength of 505 nanometres (>500 THz) rather than the 630 nanometres (400 THz) of the red lasers used in standard DVDs. The shorter wave- length means that up to 27 GB of high definition or 3D video can be stored on a single disk, enough for a HDTV feature film or two hours of recorded high-definition content. This begs the question as to whether it is going to be economic to stream files of this size over the internet. The BBC iPlayer for example is better than standard definition but falls short of high definition, let alone being 3D capable. Blu-ray 3D uses a sequential system in which the video is produced at 1080p resolution at 24 frames per second, per eye; or 48 frames per second. Streamed 3D at present uses a side by side system in which a 1080p frame holding both the right and left eye images is sent at 24 frames per second. The TV splits each single frame into two frames and then displays them sequentially with a consequent loss of quality. Even so, the bandwidth requirement is substantial. As at mid-2011 there are about 200 000 homes in the UK with 3D capable televisions of which about a third are signed up to 3DTV services from Sky or Virgin Media. The set-top box/personal video recorder market is presently moving in parallel with the integrated smart TV market with features such as triple tuning (the ability to record two 3 http://www.samsung.com/uk/consumer/tv-audio-video/television/ Making Telecoms Work channels while watching stored content) or quadruple tuning (dual satellite and terrestrial tuning). Typical storage is about