I just bought the new 8642 PVR, and I have pretty much have it all set up and working, including setting it for passthrough etc. However with this new box, I still want to be able to go into the advanced settings and set the "optimum" setting i.e 480i, 720i, 720p, 1080i, so each station is getting the best results/picture. I have it set for my older rogers HD box, but, I'm not sure how to get into the "advanced settings" and do it for this new box.

Thanks

Here's the FAQ on the topic:

http://www.digitalhome.ca/forum/showthread.php?t=17719

Useful post: http://www.digitalhome.ca/forum/showthread.php?t=57741

Also
http://www.digitalhome.ca/forum/showthread.php?t=122118

for owners of this device.