BALTIMORE—Two months ago, Sinclair Broadcast Group, Nexstar Media Group, Univision and American Tower announced they would work together to setup an ATSC 3.0-based single frequency network in the Dallas market. Work is progressing on the SFN, which with a bit of regulatory help from the FCC should be partially lit up before next month’s NAB Show in Las Vegas.

The SFN effort is more than simply a trial of Next-Gen television, however. It is also a test of a proposed ATSC 1-to-ATSC 3.0 transition that relies on spectrum clearing, channel sharing and what may be an unprecedented level of cooperation among competing broadcasters.

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