The TCL TV I use for my PC monitor has a setting to always boot into an input
I do that and never see the smart features, shit I’ve never even connected it to the Internet
I just use it as a 42 in. 4k monitor
Edit: I should mention that depending on viewing distance the PPI of a monitor can be quite low before it starts having a noticeable degregation on the viewing experience. At my sitting distance of roughly 30in from the monitor a PPI of 105 (basically what a 42in 4k screen has) is fine as even at that distance individual pixels aren’t visible. (45in at 4k is where you start being able to resolve them with 20/20 vision (we get about 1 arc minute of res from our eyes which some ugly math tells us that at a viewing distance of 30in we could determine details at about 100ppi (0.01 inches) in size))
Edit 2 For the really curiously nerdy:
Here's a little chart for max screen sizes for various seating distances based on PPI. The numbers are rounded (and start with a rounded number) and all of them have a FOV around 66 degrees.Personally I wouldn’t go for the max size on any of these and I’d go for a bit lower. Cheaper, dead pixels are harder to see, you may change your viewing distance based on comfort, minimizing screen door effect, etc, etc. https://files.catbox.moe/y2l664.JPG