Hi @skydrifter,
Greetings and welcome to the Roku Community!
The screensaver settings, such as duration and disabling, can be navigated to Settings > Theme > Screensaver Start Time. There you will have the option to choose what duration the screensaver should appear and to disable it.
Please keep us posted on what you find out.
All the best,
Kash
Takashi O.
Roku Community Moderator