MTVMTV's new high definition channel MHD went live yesterday on Cox Communications and Verizon, it is available in Florida and California only for the moment.

Another interesting note is that besides the launch concert featuring the Goo Goo Dolls, MTV has been shooting in high definition with 5.1 surround sound for over a year, building up content for the new network.

Any HDBeat readers notice a new HD channel in their lineup today?

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