Is there something about Roku TVs that will not allow an HDMI cable to stream out?
I set up a splitter to steam a sports game from one Roku tv to a second Roku tv, so that the same content was playing on both TVs at the same time. No lag.
Could not get either Roku TV to stream out. The only fix was streaming out from my laptop and then split into the two Roku TVs
And yes, I tried all the basics. Reset tv. Different hdmi ports, etc.