As a part of its Canoe advertising collabo with other large cable operators, Comcast is apparently working out how to keep track of viewing statistics from 16 million households nationwide. Charter is already tracking several hundred thousand boxes in its Los Angeles, while the Canoe venture is looking to eventually track viewing metrics for 32 million households so it can deliver Interactive TV and targeted ads. Privacy groups are already up in arms about the plans, however if this kind of system could have persuaded someone to keep Pushing Daisies on the air, we'd be willing to consider it.