There's nothing exclusive at all about those channels. Other systems can start carrying them when they get the bandwidth to do so. That's the hold-up. These upgrades don't happen over night - DirecTV had been working on this upgrade for some time. Other systems got caught a bit short and are playing catch-up. It won't be long for most of the other systems to get there. Verizon, e.g., made a commitment to carry an additional 30 HD channels, per market, by spring (putting their total at ~60/market, give or take, depending on the market), with an additional 90 coming by the end of 2008. Other traditional cable systems (e.g. Comcast) will take somewhat longer to get there.