We do not have any home cameras or a video doorbell at this time, but we have two roku devices and we sometimes kick the idea around about adding a camera or two and a video doorbell. I know devices like the Ring doorbell work on Fire TV stick and Echo devices, and the Google Nest works on Google home, and I would imagine Android TV, but there are a couple of other brands out there and Im not sure if any of them have roku apps. But not just doorbells, but POE cameras that I could maybe put one at our garage door and one in the back of the house. There are so many out there like Blink, Arlo, Ubiquiti, Hikvision, Reolink, Wyze, and MANY MANY other Chinese brands. Not that its a make or break deal but considering we already have Roku and we have no camera infrastructure now... when shopping for a system it would be a nice to have.