Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Noise reduction is a holdout from the analog days when your TV signal came in over the air and could be interfered with by multiple environmental occurrences.
Source: https://www.slashgear.com/1181480/settings-on-your-oled-tv-that-are-ruining-your-viewing-experience/