Cox Communications, the third-largest US cable operator, is investing in its HDTV proposition further by expanding its switched digital video (SDV) architecture to new markets.

It's a rollout that will reclaim bandwidth from existing infrastructure, so the MSO can offer more HD, VOD and other personalized services to their subscribers across any viewing screen. Cox has been an early adopter of SDV architecture.

Using a solution from BigBand networks, Cox is rolling out SDV in both Motorola and Cisco set-top box environments. Cox uses the solution to deliver more HDTV programming and services to more screens by increasing the bandwidth efficiency of its network.

Cox began deploying the BigBand SDV solution in 2007 as a way to allow Cox to leverage its existing network infrastructure investments and send more high-quality programming to its subscribers without service disruption.

"SDV is one of our key tools to address the bandwidth demands critical to delivering a wide variety of quality programming and services to our customers," said James Kelso, vice president of video engineering for Cox Communications. "BigBand continues to demonstrate that they have the processes and support mechanisms that make it easy to deploy SDV with minimum impact to our operations and resources."