The Chargers say more than 5,300 tickets were still unsold at Thursday's deadline, meaning the game won't be televised in Southern California.
The Chargers had four blackouts last season, including a loss to the Bengals.
The Chargers were spared the embarrassment of a local TV blackout of a Monday night game against the Indianapolis Colts earlier this season after ESPN and some local sponsors guaranteed the purchase of approximately 8,500 tickets.
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