I bought an insignia roku TV a few years ago. I've never tried screen mirroring until now, but have not had any luck linking my phone to it. When I click on screen mirroring on my app, my TV doesn't show up. Ive installed updates on my roku, and am using the same wireless network for both. My Bluetooth is on, but nothing comes up. I also can't find apple TV when I search for it. My TV isn't too old, and it still works great. Do I need an updated roku? If so, is there a way I can do it without buying a roku stick, since I already have roku on my TV? Please help! Thanks!