Would be interested in any evidence that the information is not correct. I always try to learn from folks smarter then me on these topics, and have always been intrigued by Ken_F's posts, which have been rare over the years. If there's someone with better information, or someone who's willing to take the time to investigate to enable better conclusions, then that would be great. This seems pretty cut-and-dry to me, we know the processor in the HR20, the HR21/22/23, and HR24-500. Not so sure of the exact processor number in the other HR24's but someone might know here. Knowing the exact processors, it should enable someone who's knowledgeable to post what each is specifically capable of, rather then all the guessing and babble here. I was always frustrated that we were guessing about the satellite stuff and HD utilization, then figured that it was worth the time to just go figure it out, even though I had no clue at the time where to even start. It seems like the same can be said about the HD GUI. Need someone smart to tell us what the boxes are actually capable of, and until now I've only found Ken_F to post anything credible. But there's always the opportunity for someone to do the legwork and become an expert on the topic, and post the possibilities.