The move came as Europe's public broadcaster said it was halting its relay of programmes by ERT's sacked workers who have been occupying the company's building and producing 24-hour programming in defiance of the closure.
Greece's conservative-led Government abruptly axed ERT in June and fired all 2700 staff, citing the need to cut costs amid the country's debt crisis.
The sacked workers continued to produce programmes and the European Broadcasting Union sought to help them by streaming their broadcasts by satellite.
The outcry over the closing of ERT led to a small left-wing party withdrawing from the country's fragile three-party governing coalition, leaving the Government with a tiny majority.
ERT union leaders vowed programming by the sacked workers would continue via the internet.