TiVo's not the only box offering HD content from Amazon VOD, Roku has also announced HD Amazon downloads which are available today.

We knew TiVo was beta testing Amazon HD VOD,so it's not a huge surprise it's actually official today. TV shows and Movies will be available in HD with most videos supporting 5.1 surround sound.

Amazon's movie and video content is finally available on the Roku for purchase and rental, signifying that Roku is coming through on their promise to add more content partners to the box.

Everybody is launching networked TVs it seems, but Vizio's "Connected HDTV" sounds killer: Built-in 802.11n Wi-Fi, with every service you'd want: Amazon, Blockbuster and Netflix VOD, Pandora, Flickr, Rhapsody, plus any other Yahoo widget.

Roku's Netflix box is currently a one-trick pony, but it's getting Amazon's Video on Demand later this year, meaning you can soon buy or rent and instantly stream movies and TV shows from Amazon's service.

Are you a big Amazon Unbox fan who has been insanely jealous over Netflix HD streaming? Don't break that remote in passionate rage just yet.

We've known Amazon and Sony's VOD plans since they were in diapers, but today Amazon has introduced their promised instant-view capabilities to their Video on Demand service for both Macs and PCs, and rolled out a beta for Sony Bravia Link owners to start testing-allowing you to pair your TV with your Amazon account…