Dagan refused to speak to the Herald - TVNZ said he had other things to do - but Dagan said to staff:
"I am sorry to let you know that for personal family reasons I have decided to resign from TVNZ to take up a position that's been offered to me at the Seven Network in my home city of Brisbane.
"I am thoroughly enjoying my role as Head of News and Current Affairs and relish the opportunities it continues to provide me.
"There's no doubt there's more to do. However, we all face difficult crossroads at some point - the need to find the right mix of work, life and family has come into sharp focus for me and my family in recent times, and it is at the heart of my decision.
"It's a rare and unexpected opportunity to return home to the best possible role I could hope for in Brisbane, at the network where I completed my formative years as a journalist.
"After much soul searching I have chosen to take this path. I appreciate that it is absolutely inconvenient timing and for that I am genuinely sorry.
"I have enormously high regard for TVNZ and you as a team. I have full faith in its future under Kevin's leadership. I also know we have the right mix of skills and experience to secure the future direction and the on-going success of NCA and Maori and Pacific Programmes.
"You have my respect and admiration for the work you do now and I have no doubt will continue to do into the future," Dagan said.