system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Non-HD TV looks worse than it did years ago. Have I just adjusted to HD or is the quality actually worse?
gpt
A lot of TV channels are more and more heavily compressing their signals in order to run more channels. For example, here in Australia, 7 used to run at 10Mbit, then they switched to 7Mbit on their main and 3Mbit on a secondary channel, and now 4Mbit/3Mbit/3Mbit across three channels, all of which look a lot worse. It makes them more money.