Dogs have only recently been able to watch TV, with the advent of HDTV with their higher framerates. Before that, with CRT’s, it was like watching a strobe light. We humans need about 16 to 20 images a second to perceive what we see as continuous film, whereas dogs need about 70 images per second. So a few years ago, Fido was probably confounded by his master’s behaviour of sitting for hours staring at a flashing succession of images. With modern resolution and quicker imaging, dogs have become potential television viewers. This has not gone unrecognised in the USA, for example, where hopeful TV producers have started special TV channels for dogs.