Beloved UK supermarket Sainsbury's is making a big push into digital media, after snapping up e-book retailer Anobii and music company Global Media Vault, it's now partnering with Rovi for a digital video service. Launching later in the year, it'll offer video-on-demand and downloadable copies of "major" film and TV titles, available the same time the discs are available in store. It'll initially be l
