The six new HD channels were up and running on my HD DVR this morning, though only Disney HD was showing actual HD content yet. The rest were showing SD shows or infomercials.
ESPN News was up on the guide but the channel didn't show.
None of the new channels' guide data had populated yet, but I'm guessing that will fill in later today.
The new channels were spaced fairly widely across the 700-block.
732: Discovery Channel HD
751: Food Network HD
755: ABC Family HD
769: Disney Channel HD
776: ESPN News HD
The new channels are all listed on Time Warner's website. Food Network is labeled as "HD Package," the only HD channel with that label. I'm sure that's an oversight. Even the "actual" HD tier channels like Mojo aren't labeled that way. It showed up on my box and I don't subscribe to that special HD tier.