Download in high resolution

How realistic is it to download a video in the highest possible quality if you want to save it for later review on the big screen?

 

I like watching videos on a TV or laptop with a big screen, and there the quality already plays a huge role. When the video is low resolution, it becomes unpleasant to watch it. I've been looking for different options, but not all of them allow you to choose the right quality. On Snaptik, I noticed that you can download videos in high resolution, and this is really convenient: clarity is not lost, and the viewing experience remains much brighter.