@xxautmnsflamexx
What is the model of your Roku device. (Settings/System/About).
Initial troubleshooting would be to Restart the Roku device, try another HDMI port on TV, then try another HDMI cable.
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
Insignia RokuTV, Ultra 4660, Premiere+ 3921, Express 4k+ 3941, Streambar 9102