Before all the HD channels were in the 700 slot now they moved them over to the 1,000 slot. At first I thought this was horrible and I have to remember what show is what all over again. It turns out that's not the case anymore.
Basic Cable CartoonNetwork is channel 58.
HD version before the change was 771.
Now the HD version is set at 1058.
Same goes to every other show like Nick which is 44 and the new HD channel is 1044. Or spike which is 27 and it's new HD channel is 1027.
There is also potentially 98 more channels on the way since they moved channels 700-798 somewhere else.