A Channel Aggregator can now reach out to a world-wide audience through the head-end servers; no longer would he be geographically limited. The iCDN ecology will provide him with many more revenue streams. The Channe( Aggrega¬tor would encrypt his channels and provide the keys in the same manner as the Content Aggregator. He will though, for extra security, use a key-pair and change one of the keys every 12 hours. The iSTBs will pre-fetch the key-pair every 12 hours, to avoid delays during a channel change.

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The Channel Aggregator will also keep an archive of ail the keys, changed daily, from the beginning of his operation. This is necessary as an iSTB will record the channel only in its encrypted form, and will need the key for it when it has to play it back.
As in the case of the Content Aggregator, a Channel Aggregator can also provide H D,SD,and LD versions of the channels.