If you are using a Roku device plugged into into the USB port on the TV for power, try powering from house power via a USB power adapter -- one may have been supplied with the Roku.
If your Roku didn't come with an adapter, or if you don't have a Roku adapter handy, a USB power adapter you have from another device should work as long as the fine print on it says it outputs at least 1 amp (1000 milliamps). More than 1 amp is okay, the Roku will only draw what it needs.
I'll give this a try. Many thanks. 🙂
