I think the issue has been kicked around since I first came to the forum. :lol: For me I start with how quick my Sony XBR2 will change channels from an antenna, which is 2 sec [measured with one thousand, two thousand, .....] With native off, the DirecTV receivers take 3 sec. With native on, changing resolutions is 6-8 secs. I just checked this with component and native on, changing resolutions was only 3 sec. Seems like the HDMI handshake is causing a 4-5 sec delay. Now for some of the other buttons: I started with my HR24-500, and both list & guide took ≈ 1 sec from press to being on screen. Moving to my HR34, this was ≈ 2 sec. The new genie was ≈ 1 sec. "Generally" pressing menu take a bit to load, as the first page needs to populate with the show clip art. Once there, it seems to move quickly on my 24, a bit slower "maybe" on my 34, and about the same as the 24 with the new genie. Comparing the guide between all of these [once it's up] is hard pressed to see a big difference, as my custom guides vary between these three DVRs, but range from 90-120 channels. It's very close to 3 sec to channel down [and hold] through the whole guide and get back to the channel I started on. Well this is what mine do right now. I was surprised to find the HDMI slowing down my channel changing as much as it is.