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Have you noticed, when watching tv, it is hard to read a license plate off a car if that said car is showing wholly with some surroundings on the screen? When the storyline of the tv-program needs to show you the license plate, they move in close and really show you the plate. Can't do better even when they do have very expensive high quality large lens ...

HD simply refers to a given number of pixels in the signal, not some measure of quality. Even 1080p TV is lower resolution than the photos on most camera phones. Even the 4k video used in the latest Hollywood blockbuster movies is lower quality than the still photos of most camera phones. Video takes up far FAR more data than stills. If you think about ...

The camera's sensor possibly has 1,280 × 720 = 921,600 pixels arranged in a Bayer Pattern. Half of the pixels are green, a quarter are red, and the remaining are blue. It takes more than one such pixel to calculate an actual full-color pixel, through an interpolation process called demosaicing. This process leads to blurry images when viewed at full ...

These are teleprompters, or more accurately the upper mirror of a free standing teleprompter. The screen is at the base of the device and can be larger and brighter than would otherwise fit on a small stand. They place the screen at a 45 degree angle and then place the mirror at a 45 degree angle such that the image looks like the screen is hovering ...

They are for the teleprompter. The words are on a screen below, the angle is to reflect to the speaker's line of site... I'm sure there are different implementations, but that's the basic gist.