Charter Expanding HDTV in L.A. Via SDV

Charter is hooking up with BigBand Networks' switched digital video (SDV) technology to increase its HD offerings in the Los Angeles area. SDV essentially allows cable operators to send out a digital video signal just to customers requesting a particular channel rather than to all customers, as is the case with traditional cable broadcasting. Most of the cable companies are utilizing SDV in some way to expand their channel lineups without a large increase in coax network upgrades.