I purchased the HD through WeaKnees. Great Service BTW

Anyway, I followed the instructions and installed the new HD and it seems to be working fine except for this. I went through "Messages & Settings"/"Settings"/"Channels"/"Channel List" to un-mark the channels that I do not receive. I did that for several channels then exited and tried surfing through channels. The channels that I had un-checked were still coming up as I surfed through channels. It has only been about an hour since the installation and set-up and I know that it may take some time for full channel line-ups, etc. to show up in guides. Does it also take time for the channel selection to take effect? If not is there anything that I can do to correct this. While annoying surfing through the channels I don't receive I'm more concerned about the DVR recording suggestions from channels I don't get. Is this perhaps a known issue with a new HD installation? Any advice would be greatly appreciated.

Thanks You