Windows 10: How long to keep computer switched on?

Actually, yes. When you press the standard power key on TVs from about the last decade or two, they don't really power all the way off. It's more of a sleep function. You have to actually unplug them to power most of them all the way off. Think about it. In order for a TV to turn on when you press the infrared remote power key - it already has to have some circuits on and running in order to receive and act on the command from the remote.

And that's one reason I say "hooey" when it is stated that if you get more then two years life out of a capacitor you are lucky. There are a lot of circuits in standard household equipment that are powered on 24/7, such as anything with an infrared remote and most them last a lot longer than 2-3 years.

 

We have a PC at work that we use as an 'engine' to run all our programs for all Staff in Aust & NZ. This PC is never turned off.
There have been zero problems with leaving it on 24/7.

 

Phew $300 per year to keep the PC on! I an think of better uses for the money.

 

That was just small part of power consumption with CRT TV/monitors. In order to start faster cathodes in CRT screen were held energized so they satay hot all the time and that took even more power.