Unfortunately, you/we shouldn't even have to be researching this topic and/or having any issue with any one particular subscribing channel.
ROKU obviously has something built into their firmware that's inherent in all the TVs that carry the ROKU software. More than likely it has something to do with the buffer which almost everyone has talked about and of which almost every fix points to taking care of in one way or another. Let's face it, whether, hitting a Clear Buffer Button (most don't have this), rebooting, unplugging, reinstalling, or hitting up up up back back back and home home home or whatever whatever whatever, it all comes down to the same thing, CLEARING OUT THE BUFFER!!
So what is it that is so difficult for ROKU to grab onto and figure out this problem? Or, do they simply know of the problem, not care about the problem, did a cost analysis to fix the problem, and then realized it's simply easier to let the inventory sell out cheaper then it is to put in the labor and admit there was a problem causing a major meltdown in their publicity and future sales???
I'm even stumped that they even allow this board to run wild!
I'm sure the CEO and the rest of the team are pulling out their hair on this as we all type.
