Yes I've made sure my TV's built-in smoothing is off. Like 6 times. Normal shows and TV look just fine on my tv, which if it matters, is an insignia with fire TV built in. So I bought Endgame in 4k but it looks like not just 4k but also 60 FPS. I've just now started watching an episode of the Grand Tour and the same thing is happening. I didn't choose Ultra HD but if I pause it, it says it's playing in Ultra HD. This is a fairly new tv, so I've watched previous episodes of this show on my previous tv, which was just 1080p, and it didn't look like this.
Is 4k just so sharp it appears smoother because there's less motion blur? Is it a refresh rate thing? Does anyone know if I can turn it off but keep the 4k part?