"The clue to what's going on lies in our choice of the word 'screen' to describe the 42XR4 rather than TV. To become a TV, a screen needs to carry a built-in TV tuner something that the 42XR4 conspicuously lacks. You can buy an optional external 180 TV tuner from NEC for the screen, but in its from-the-box state, the 42XR4 is resolutely a screen rather than a TV."