I have a Vizio Smart TV and it doesn't have many of the apps I used when I had Roku on my previous TV so I hooked my Roku up to the Vizio TV and the Roku plays shows but there is no sound. I have used several youtube video's troubling shooting the issue and nothing has helped. I have unplugged and replugged it in. I have changed to a different HGMI input to see if that would help, and it didn't. I am at a loss. I hope y'all have some suggestions or knows the exact problem. TIA!