The folks over there were probably too excited about the new machines, releasing several Windows 8 machines on their website over the weekend.
Since that, Microsoft has asked HSN to remove those listings of the machines. HSN has complied, but as of now you can still access tutorial videos on how to use Windows 8 on the HSN website.
Of course you can't see the PC's listed on the HSN website anymore, but plenty of news agencies took snapshots of the pages, and posted them on their websites. The following are from ZDNet and Everything Microsoft.
You can read more on the stuff that these PC's include on ZDnet. Let me know of your thoughts on the comments below.