Hi, @Bostontv123
Greetings, and welcome to the Roku Community.
Thanks for letting us know about the flickering screen you have noticed with your Onn Roku TV. This appears to be as a display issue, which is a part of the TV's hardware compartment. For this matter, we recommend reaching out to Onn's support directly since Roku TV manufacturers design and build their own TV models, as Roku is only used as its operating system.
For more information, you can contact their support team at Onn | Support
We hope this will be sorted out soon, and please feel free to let us know if you have further concerns or inquries.
Best wishes,
Kash
Takashi O.
Roku Community Moderator