Comcast simultaneously claims that some of their own VoD services -- services delivered via your cable modem, through your router and home wifi network -- don't count, because they're part of your cable service, not the internet, so they're allowed to treat them differently.
I thought the VoD services were implemented by having a bunch of HD channels reserved as VoD stations. Then when you order something, the system tells your cable box to change to X channel, where the VoD stream plays. So it's not actually using the same system as your internet service.
http://corporate.comcast.com/comcast-voices/the-facts-about-...