Roku is exploring ways to show consumers ads on its TVs even when they are not using its streaming platform: The company has been looking into injecting ads into the video feeds of third-party devices connected to its TVs, according to a recent patent filing.
This way, when an owner of a Roku TV takes a short break from playing a game on their Xbox, or streaming something on an Apple TV device connected to the TV set, Roku would use that break to show ads. Roku engineers have even explored ways to figure out what the consumer is doing with their TV-connected device in order to display relevant advertising.
Oh the SHIELD has been great.
Not sure what other launchers you've tried but this one is best that I'm using..it's worth it for the amount but of simplicity and customization you get
https://play.google.com/store/apps/details?id=dxidev.sideloadchannel4
If you don't feel like....paying, the APK is out there. I don't remember where I got mine from