Let the hive mind of Engadget get that for you.
"I am looking for a device that will stream sound from one source to several recipients. For example, I want to stream sound from my TV or stereo to my phone or MP3 player that has radio and Bluetooth capabilities. I have looked into radio transmitters and they seem like a decent choice, but I can't find one that uses external power (USB or from the plug) and I would want one with a transmit range of around 50 meters. Thanks!"
I didn't state that it was accurate or a great idea, but if the individual program "claims" to be in HD, and it's broadcast at an increased resolution, then that's probably how they calculated it. My TV upscales everything anyway, so to take your statement one step further EVERYTHING I see is "HD". However, the statements were "why is it showing as 100% when it isn't", and I bet it's calculated on the claim. The claim, sadly, is based on the resolution that's puked out and not by how well the content was transferred to it. This is a lot like the first HD DVD and Blu-Ray movies I saw with the horrible graining and blurring.
So, technically, the site is "correct" but a bit sad as well...