It is an HD reality show, ABC just screwed up somehow tonight. It's labeled as HDTV on the Benefactor website and I've seen the HD promos on HDNet, hopefully it'll be fixed by next week (or even for the thursday re-run)
Sounds to me like he got into some sort of argument with ABC. He was so excited about this reality show being HD that he created his own thread at AVS stating all HD all the time even the hidden cameras (which it's all probably true) but ABC did a disservice to him last night.