TV resolution of 1366x768p on Xbox series s

if it does manage to get a picture it will get cut off the screen or you will be downgraded to 480p.

the series s support up to 1440p but to use that resolution you would need a monitor not a tv as most if not all tv's support 1080p or 4k.

series s will upscale to 4k though.

Hi, my name is Marvina and I will be happy to help you.

I'm sorry you have this problem. Follow the instructions below for a solution.

Learn about TV resolutions and the resolutions supported by Xbox Series X|S, Xbox One X, and Xbox One S.

The graph represents TV resolutions from 480p to 4K UHD.
Resolution options
This is what 720p resolution does:
Displays images with a maximum resolution of 1280 x 720 pixels.

It offers a 16:9 high definition (HD) viewing area.
720p is the lowest resolution on most HDTVs. However, the image is still excellent and for a screen smaller than 37 inches, the quality of the 720p images is practically similar to that of higher resolution televisions. If your HDTV only has 720p and 1080i as options, you should select 720p for the best resolution.

This is what 1080p resolution does:
Displays images with a maximum resolution of 1920 x 1080 pixels.
This offers users a 16:9 high definition (HD) viewing area.

1080p is the most common resolution for movies, television, games, and many of the experiences offered by the Xbox. A 1080p TV offers the best picture quality, allowing you to enjoy Blu-ray movies in the resolution they were designed for. Each line of pixels on the screen is redrawn 60 times per second or faster.

This reduces motion blur and creates a sharp image.
Note if you have an Xbox Series X|S, Xbox One S, or Xbox One

For more information, see:
How to Change TV Screen Settings on Xbox
This is what 1440p resolution does:
Displays images with a maximum resolution of 2560 x 1440 pixels.

This offers users a 16:9 high definition (HD) viewing area.
More and more computer monitors have 1440p resolution, which is becoming a very popular option among gamers. It is sometimes listed as "Quad HD" as it offers four times the HD screen resolution of 720p.

Aspects that you should take into account:
You must have an Xbox Series X|S, Xbox One

If you have an Xbox Series X|S, Xbox One S, or Xbox One

For more information, see:
How to Change TV Screen Settings on Xbox
Things to keep in mind:
You must have an Xbox One X or an Xbox One S and a 4K TV to use 4K UHD resolution.
Xbox Series X|S also supports 4K refresh rate at 120Hz.

This is what 4K UHD resolution does:
Displays images with a maximum resolution of 3840 x 2160 pixels.
This offers users a 16:9 ultra high definition (UHD) viewing area.

With four times the resolution of 1080p HD, 4K Ultra HD delivers the clearest, most realistic video possible. Play games on your Xbox Series X or Xbox One high dynamic range) on your Xbox Series X, Xbox Series S, Xbox One

Information source (credits):
https://support.xbox.com/help/hardw...osas a tener en cuentan,actualización de 4K a %20120Hz.

I hope I can help you solve it.

Best regards,
Marvina.

Yes, Xbox Series X will have a setting to change resolution. However you can also consider buying an Xbox Series S if you do not plan to upgrade your TV/Monitor just yet.

Hey there, the old tv might not support the resolution for the Xbox series s so I'm sorry about that but if it does you could check this Xbox support article. And thanks for posting on the forums <3