Patent ID: 7529856

Claim:
A system for delivery of multimedia services comprising: a high-speed network backbone carrying content; at least two regional servers, coupled to the high-speed network backbone and including a first regional server and a second regional server which each provide a second level of caching for content received from the high-speed network backbone, the first regional server configured to customize content received from the high-speed network backbone to form a first version of multicast content and the second regional server configured to customize the content received from the high-speed network backbone to form a second version of multicast content; and a plurality of caching servers, including a first caching server coupled to the first regional server and a second caching server coupled to the second regional server, each caching server configured to provide a first level of caching of content for an end user system in a region served by the regional server to which it is coupled, and to provide the customized multicast content formed by the coupled regional server to the end-user system; wherein at least one of the caching servers is associated with a television head-end that provides television signals to the end user system in the region served by the regional server to which it is coupled.