Xfinity Stream on Roku Ultra : AXS TV channel

I recently ditched my old Xfinity Cable TV XG1v4 DVR and am now going all internet TV using the Xfinity Stream App on my Roku Ultra. I have the Xfinity TV Premium channel lineup (which I think includes pretty much all channels). One channel I am missing is the AXS TV channel. Doing some research, I see that AXS TV channel is now one of the TV Go channels (internet only vs cable TV). I can access the AXS TV channel going to https://www.xfinity.com/stream on my MS Windows PC. At any rate, I don't seem to be able to access the AXS TV channel using the Xfinity Stream App on Roku. I also tried installing the AXs App on Roku, but then I came to find out that the AXs app is some entirely different than the AXS TV channel. Has anyone been able to access AXS TV via Roku?