it was coming, and now the deed has been done. As promised, Blockbuster's On Demand movie rental service has gone live on a bevy of TiVo boxes, enabling Series2, Series3, TiVo HD and TiVo HD XL DVRs to watch all sorts of releases without needing to purchase another set-top-box or tap into their cable company's VOD system. We're told that most rentals will range from $2.99 (for the classics) to $3.99 (for new releases), with the film catalog expected to expand over the coming weeks. HD aficionados will have to wait a tick before seeing any movies available in high-def, but those looking to pick up a new TiVo can now saunter into any Blockbuster retail location in order to claim one. Eager to get in on the action? Fire up your box and hit the "Video On Demand" screen from TiVo Central.