Hi ERey, just wanted to follow up. After hearing from you I went back to the custom set up I had for my theme, screen saver and sounds. Apparently by returning the device to its default settings and then restoring my custom theme, the issue of delayed and echo sounds, jittery navigation of channels went away. It's been a week or so and all seems to be good
Update your TV’s software download the updates in your tv’s settings! This fixed the theme pack audio issue with my streaming stick & got everything back to normal!
It's not a smart tv, it's an older Samsung plasma, that's why I've got a Roku on it to begin with