Looks like Verizon's not the only one to have beef with Cablevision's treatment of its MSG HD channels, now that AT&T has also petitioned the FCC to compel the cabler to sell the high definition feeds to its competitors. AT&T cites stats showing high definition is a big deal for consumers, with 45% saying they'd switch providers for a superior sports package, claiming it can't compete in Connecticut without the networks. Just as before, Cablevision claims it can do as it likes, that it already sells them every single game (in SD format) and that AT&T is a bigger company that doesn't need a bailout. We've had plenty of summertimes squabbles about who was and wasn't playing by the rules that ended with one side claiming they'd take their ball and go home, but we usually didn't bring the FCC in to settle it. The FCC is still on a five month clock to consider the complaints and the "terrestrial loophole," 'til it responds we can't guess how this one will end.