Cox and NBC Universal announced this week an On DEMAND trial through which select NBC primetime shows will be available for free starting the day after they first air on the network. Featured shows: “30 Rock,” “Friday Night Lights,” “Las Vegas,” “Bionic Woman,” and “Life.” The announcement generated a fair amount of interest. Here’s a round-up of some of the coverage, from Mediaweek, Marketing Shift, and Digital Media Wire. Cox’s agreement with Hearst-Argyle covering retransmission of the broadcaster’s high-definition and analog signals for stations in six markets also generated coverage, including here, here, and here.