Amazon Video on Demand ups the definition to "high"

instanthd
If you’re a fan of Amazon’s iTunes rival, Video on Demand, you’ve probably been waiting patiently for this announcement. Indeed, after iTunes went HD, it was only a matter of time before the other big A did as well. So they’ve got the usual suspects in HD, and your favorite set-top boxes like Roku and TiVo should be ready to stream HD as you read this, assuming the update has rolled out to you. Your internet-enabled TVs like newer Vieras and Bravias will reflect the change as well.

You can check out the movie selection here and the TV shows here.