I'm encountering a similar situation with my BeoVision 4. If you look at the underside of the screen, you'll see that there are several "slots." Each slot can accommodate a different type of input. For example, you probably have at least a VGA slot and a component slot right now. The unused ones are covered by plates. You need to determine with generation of screen you have. For example, D6, D7, D8, etc. Then find a Panasonic HDMI blade for that generation of monitor to insert into one of the empty slots. It just pops in. Nothing technical about it. I think the firmware of the BeoVision might have to be updated and configured so that it defaults to the appropriate slot for HDMI. I'm sure more technically minded BeoWorlders will know.