said by webcobbler :Try restarting your STB. If that doesn't work, try an autocorrection.
It is on the Guide now, as well a Guide Data in VHO 7. However, when I tune to it, it says that I am not Subscribed to Cartoon Network, and Press OK to Subscribe. And when I am on ch. 257, there is no "Press C to Watch in HD" option.
Maybe it will up and running on Friday, if this is any indication of the channel's progress. Just my opinion.