Deleted my somewhat snarky post. Well, edited it with this message since I can't figure out how to delete a post.

Xumo stream. This is the joint Xfinity/ Spectrum streaming box. Not sure if it's a closed ecosystem, but specs say it supports AC4 My mother-in-law is in Spectrum territory and got sent some info on this box. I did some more digging. It is completely closed (at least from an app perspective). As in...