What happens if you put tv to 4:3 on series x?

Wow....................erm....................ok.

1: Im guessing Roku TV is either a specific brand of TV or a set top box or an app.

2: Can this TV/set top box/app run the Series X.

I assume you mean can the Series X run on the TV? if that's the question then yes, the Series X can run on pretty much any TV (apart from old CRT TV's)

3: But missed out the other stuff?

what other stuff?

4: Will it work on HDMI 2.0? yes it will.

Ive got to say though why are you buying a Series X when you have a TV that maxes out at 720p? that's like buying a Porche but then driving it everywhere at 30mph. You would be better saving your money and buying a Series S, all of the benefits of having
a Series X are completely redundant if your are using it on a TV that can only display at 720p.

Thanks for the tip! Unfortunately happens on others TV’s as well, but even if it was/is a Samsung issue Microsoft should have:

1. Owned the issue and report it to their customer base. Auto manufacturers, drug companies, and food distributors etc ALL routinely send out notifications to owners and the general public regarding product defects/ recalls, etc. Microsoft never does

2. Samsung is one of the biggest TV manufacturers in the world, Microsoft should be working hand-in hand with Samsung for a solution if it truly is a Samsung issue

3. ONLY the Xbox-Series X has this issue, No other, including the Series S which is the “little brother” of the Series X

4. The issue is the Series X

it only happens to the Xbox X series + Samsung TV. I have Xbox one and a sony TV as well. I tried Xbox X series + Sony TV and Xbox one + Samsung TV. both work...

It's not the Series X..... It doesn't happen to other tv's.....I think it's a compatibility thing with LG TV's.

3. ONLY the Xbox-Series X has this issue, No other, including the Series S which is the “little brother” of the Series X

4. The issue is the Series X

Are you sure, that the Series S is not affected?