Seriously ? You are joking right, you have a 1920 x1200 or is some cases a 2.5k resolution with teclast even on a 10 inch screen watching full screen video the difference between 720 and 1080p is noticeable as the video needs to upscale to the native resolution or else you have to watch letter box. If you watch 720p not stretched you will have a big fat letter box around your video because of the native resolution being much higher.Besides I don't load 20gig files often, was done as a test, I stream it directly from my HDD connected to my huawei router, I don't do because it offers better quality necessarily but it does offer less frame drops the less the video is compressed, I do because I can and have the hardware to do so.

Besides I set a target of a 128gig rom for my tablet, because I was sick and tired of having to copy over substandard content over every 5minutes because of lack of space.Now I copy an entire weeks or more worth of content at 1080p at an average of 650mb a TV episode and 1.6gig ish a movie 1920 x 800 is about 2.8gig or whatever without hassle. The 20gig files I have is like lord of the rings and pirates of the caribbean, stargate stuff, which is lossless quality at 1080p lol
You would think the native resolution of the tablet versus the video resolution wouldn't make an impact on a 10 inch screen it does, seems to me you haven't actually experienced the difference to know any better. But okay lol