As negotiations for their first contract have hit the skids, postproduction workers at Saturday Night Live are preparing for a strike.

In a series of tweets on Thursday, the union representing these workers — The Motion Picture Editors Guild (IATSE Local 700) — described bargaining sessions that haven’t come close to addressing the concerns of the group, a set of 12-20 crew members who primarily work on the show’s pretaped sketches. “NBCU has refused fair compensation, refused to commit to maintaining existing health benefits, & refused to show SNL’s post crew the respect they deserve,” the union, representing the group of film editors, editors, assistant editor and media managers, alleged in their messages. “NBCU wants to shut us up – so we will yell louder. Plan to join us on the picket line April 1st.”