Where I live I have to use wireless internet which means I am limited to 50GB. I have done a lot of work to determine what was using all our download limit and it was 3 ChromeCasts showing useless full HD high quality background images all day every day. This is despite the fact I have the option for a backdrop turned off. I tried setting it to cycle through a pair of 1 pixel images, which did work, but after playing a movie I found it went back to cycling through stock images. So does anyone know if I root it will I be able to turn this crap off for real?