Several Korean broadcasters are facing disruptions in their airing schedule, as a strike by media unionized workers against the ruling Grand National Party's move to revise media law entered its third day.

After unionized MBC workers walked off the job, the broadcaster's morning news show saw its running time cut and its evening current affairs program was replaced by another show.

Though senior MBC staff not belonging to the union are filling in for workers on strike, more programs are expected to face disruptions in the airing schedule.

Unionized workers at other broadcasters including SBS and CBS say they will join the strike, though the broadcasters have been airing programs as scheduled so far.