I bought 2 rokus for my apartment about 3-4 months ago. I use one in my room and one in the living room. The one in the living room has no problems however when either one is hooked up to the TV in my room there's a loud humming that occurs when the roku is on and connected to my TV. Ive tried both rokus and 3 different hdmi cords and the humming still exists. However I've tried both on the TV in the living room and there isn't any hum to he heard. How do I fix this its driving me insane!