Scott answers questions this week. One reader is having the issue that he can't see his 4K AppleTV on his one HDMI port, but will on his other port. Scott says that some of those HDMI inputs operate at the highest possible bandwidth of 18GB per second, while the others operate at 10.2 GB per second. 4K will not work at 10.2GB per second, so chances are, the reader is plugging it into the wrong port. You may also need to go into the settings an tell the TV to stream at the highest bandwidth. This is due to manufacturers wanting to be as compatible as possible with legacy equipment. So if you're on the bleeding edge or have the most recent devices, check your HDMI port settings and enable the higher bandwidth.