This isn't a new problem. Lindsay Perigo quit TVNZ in the early 90s, accusing it of being 'brain dead':
"I sometimes ask myself what would life be like if I had just stayed at TVNZ, and there is no doubt that materially life would be a lot richer. But I do not regret for a second the fact that I forsook that career. I was dying within at TVNZ. The dumbing down that was going on. Plus the fact that for twenty years I had made a career of listening to other people spouting mainly nonsense. I had also become aware of what scumbags they were."
"I sometimes ask myself what would life be like if I had just stayed at TVNZ, and there is no doubt that materially life would be a lot richer. But I do not regret for a second the fact that I forsook that career. I was dying within at TVNZ. The dumbing down that was going on. Plus the fact that for twenty years I had made a career of listening to other people spouting mainly nonsense. I had also become aware of what scumbags they were."
http://www.freeradical.co.nz/content/36/36jesson.php