Quotes from the news wire:
It’s actually the hardest thing, 'That’s all folks' is the most difficult thing I have to say. Because Mel Blanc said it once when he first got the job in the ‘30s. And after a few years, he used the original recording and, before I think the ‘40s, they stopped having Porky come out of the drum and [say the line]. He didn’t do it again until he started doing press in the ‘80s. And his voice had changed. He was older. So, when I say ‘That’s all folks,’ I’ll say… ‘Do you want 1930s Mel Blanc ‘That’s all folks’ or 1980s Mel Blanc ‘That’s all folks?’… It’s different. So I just do whatever I think feels good….