Pixels and Resolution
What are pixels?
Pixels is the short of picture element. When we look at a picture or a TV screen we only see the full image normally, this is because the resolution of out screens or our TVs are good quality. Although what makes the images are small pixels combined together in different colours to make this HD image that we see. The amount of pixels depend on the quality of the image, for example if your TV has a 720 x 480 , therefore the quality is going to be ok. However if you are looking for extreme quality you could use an 1920 x 1080.