Dozens of local TV stations owned by Tegna, most of them NBC and CBS affiliates, have gone dark on DirecTV in a carriage dispute.

The companies failed to reach an agreement before a 5 p.m. Pt deadline Thursday. The outage will immediately affect roughly 5 million customers in markets across the U.S.

DirecTV was spun off by AT&T in 2021 into a privately held entity that is 30%-owned by private equity firm Tpg. DirecTV’s traditional satellite business, along with the internet-delivered DirecTV stream and the U-Verse cable systems combined have nearly 12 million subscribers in the U.S., according to recent analysts’ estimates.

The Tegna battle affects about 40% of that base, sources indicated to Deadline, with 70% of affected stations being affiliated with either CBS or NBC. Tegna owns 66 stations in 52 markets, including in top such DMAs as Dallas, Phoenix and Denver.

Rob Thun, chief content officer of DirecTV, faulted the stance...