Ed Foster points up one of the issues that any rollout of internet TV is going to face: ISP policies on bandwidth usage.

"I just got a call from Comcast saying I'm downloading too much and I have to cut it back or they will suspend my account for a year," the reader wrote. "Of course, I asked what I have to cut it back to -- they don't know. Just cut it back 'drastically,' they said. So I asked what the limit was and they don't know that either. It's the top X percent in a one-month period -- they don't know what 'X' is either. So asked if there was an account where there was no limit and they said I could open a commercial account. So I asked what the limit was on that and they didn't know -- just that it was higher."

So say you start buying movies through your XBox, or through iTunes - and you cross that magic "too many bits" threshold. Your ISP will not only threaten you with a cutoff, but they won't tell you what the limits are. I suspect that a long weekend spent downloading a relative handful of HD content could get you whacked.

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