I keep boxes for big items.
So much easier if you ever need to move them outside the house.
OK the older TV are built like tanks and can take a bashing as long as you protect the screen a bubble wrap will do.
The newer screens are not so tough especially OLED, 1/2 their screen is just a few mm thick and you want the custom made poly packaging to protect that, and the best place to keep that stuff is in the box.