I have a 15" LCD from 1998 and it turns on in a few hundred ms. 2010s+ LCDs take about 5-10 seconds which is insanely slow (even for a casual user, in which case it causes more confusion when plugging cables in because he's likely to assume the cables are wrong and disconnect them because the screen didn't react right away). TVs take as long or worse because they are simply more poorly designed. 5 seconds is literally longer than it takes for a CRT to turn on and have a viewable picture.
The general quality of hardware can be gleaned as the inverse of how much software is in it.
As for vendor fetishizing: All monitor/TV vendors are terrible.
Panasonic got out of the NA TV market a few years ago, and no warranty+exorbitant shipping costs means it isn't worth buying one in Europe and having it shipped.
They're also ending their inhouse TV production and outsourcing it for 2022, which probably means they're going to get worse.
Shouldn’t have to do this at all, obviously, but at least if it’s android then you’re just a few commands away from removing most anything.
Used it to rid my Sony of all the annoyances and the continual “enable samba?” Prompts that kept coming up despite always choosing “disable” explicitly.
Google for “adb remove ads <model/brand>” or similar. 20 minutes helped my wife not be annoyed at popovers on the TV, and saved me countless time looking for the OEM remote. :D