The Writers Guild of America, East said today it is filing an unfair labor practice charge with the National Labor Relations Board against NBCUniversal.

Almost four years after Peacock Productions, NBC’s in-house nonfiction production company, voted to unionize with the WGAE, and a little more than a year after the company and the union ratified a collectively-bargained contract, the guild says, NBC is now busting the union by superficially reconfiguring Peacock Productions and giving it a new name.

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