 Complete the following phrase:  The Greek national broadcaster, Ellinikí Radiofonía Tileórasi ERT broadcasts the event in Greece each year and organizes the selection process for its entry. From 2004 to 2006, ERT had selected high-profile artists internally and set up national finals to choose the song, while for 2007 it held a televised national final to choose both the song and performer. As every other year since his first participation in the 