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Home Viewing
Everything that sits between the film and the sofa: the television, the sound, the room, and the defaults that arrived switched on.
A new television is configured to sell itself. Vivid and Dynamic modes push contrast and saturation to survive shop-floor lighting, motion interpolation is on by default under a different trade name on every brand, and energy-saving features quietly dim the panel in exactly the low-light room where you actually watch films. None of that is a fault, and all of it can be turned off.
The pages here explain what each control does before telling you where it is, because the naming across this whole category is actively misleading. The most common example is the control marked Brightness, which on almost every set sold adjusts the black floor rather than light output, so raising it makes a dark film look worse rather than better.
Audio gets the same treatment. Getting a surround format to actually arrive at your speakers depends on the path the signal takes, and the weakest link in that path decides the result no matter what the app claims to be sending.