It's not a copyright issue.
The Verizon Wireless contract specifically allows streaming video on their network.
Not doubting you, but streaming Video and Streaming Live TV are very different things. You can stream video on AT&T, but not Live TV.
I would be curious as to what the Verizon contract says, if you don't mind sharing.
Anyone know if any of the US carriers stream live tv over their data plans? Honestly, I have long been surprised no one has bragged that with their phone and cel service, you can watch broadcast TV live, exactly as you would on your home TV. Basically, a "Live TV Anywhere" campaign. I would consider any carrier and devise who provided that.