Microsoft Corp has formed an equally-owned joint venture with Tele-Communications Inc to further their multimedia trials (CI No 2,368). The new venture will develop and market a new cable television network that will target the consumer market for personal computer products by offering computer-oriented programming, with magazine-format shows and home shopping, and although Tele-Communications will deliver the network using digital compression and computer-based set-top decoders, cable companies will have the option of carrying the network over their current analogue systems.The venture will also deliver a range of interactive services to home personal computers via cable modems.