Hi @EBaker541,
Thanks for posting, and welcome to the Roku Community!
We understand you are having trouble switching the display type with your Roku streaming device.
For clarification, are you plugging your Roku device directly into the TV, a receiver, or some other audio device? Also, have you tried contacting Samsung support yet to inquire further?
We commend starting there to see what options or suggestions they can provide because it might need to do something on the TV side to activate it. A specific HDMI port or HDMI setting within.
Please keep us posted on what you find out, and we'll continue assisting you from there.
All the best,
Chel
Jecheal R.
Roku Community Moderator