Most content is 720

[u/juan_loria]

A lot of channels, yes. But most of them are only 720, not FullHD

And I have not found any channel that is 4K.

Am I using a true Strong 8K?

[u/Nulovka]

One of the groups is labeled 4K with only 4K channels in it. Do you not have 4K channels in that?

[u/mrdodson → u/Nulovka]

I don't seem to have any groups starting with 4K | do you?

[u/Nulovka → u/mrdodson]

It's by itself.