Have you selected the correct HDMI input?
Try a different HDMI input.
Try the firestick on a different TV. If you get it working check the video resolution. If it's different than the Sanyo change it and try the firestick in that TV again.
Have you selected the correct HDMI input?
Try a different HDMI input.
Try the firestick on a different TV. If you get it working check the video resolution. If it's different than the Sanyo change it and try the firestick in that TV again.