New Roku Stick fresh out of box 2019/05/18. Setup fine, then when trying to add channels or use or anything else, TV turns off at about 30 seconds (but appears to have a variance, not exactly same time each time). Have tried re-setting (as in unplug/replug) batteries in remote, power to Roku, Roku into TV. Most current SW. Have turned off 1-touch whatever as other threads recommend. No joy. This is not our first Roku but the first with this problem. Whazzup, and help!
