for the past 5 - 6 years i've had "0" problems with roku but as of last friday morning (1/17/20) i have video but no sound on any of my roku channels ... it's fine everywhere else though , what may have happened ?
You sure it isnt muted on Roku?
Are there Volume buttons on right side?
there would be a mute button as well.
Try Settings/System/System restart
i've tried restarting it many times along with the tv & stereo even did a full reboot on the roku stick with no luck . i don't have any volume control on the roku remote & don't see any mute options on the tv in or out of settings ... don't know what else to do ???
last resort .... maybe i'll try the factory reset ?
go for it.