(UPDATE) From Sankei Shinbun's Youtube channel, when Reactor 3 exploded:
When they were trying to operate SR valve in Reactor 2 to reduce pressure:
Live now at Nico Nico Video, but it is set to be over in less than 10 minutes...
Link is here: http://live.nicovideo.jp/watch/lv102784801?ref=top&zroute=index
I'm watching it, but there is no sound. Comments from people who have been watching this (2 hours 30 minutes into the video) are interesting. Some examples:
I now think better of Dr. Madarame. In the video, he was not what I thought he was.
TEPCO HQ is so incompetent.
There was a clip right now with sound:
"1F (Fukushima I), there is a tsunami warning in Hamadori right now, 3 meter high they say. Please pay attention and be careful."
That must have been from the afternoon of March 11, 2011... (CORRECTION: It was on March 14, 2011, after one of the aftershocks that happened between 10AM and 11AM. From Japan Meteorological Agency data, 3/14/2011.)
TEPCO should just disclose everything, with sound. Even NHK says so.
Here's the link to Nikkei Shinbun's article, which has a video when Reactor 3 blew up:
It was more like Plant Manager Yoshida was calling "mayday, mayday" when Reactor 3 blew up. The people at TEPCO HQ didn't seem to comprehend what Yoshida was saying for several seconds, and started to respond as if Yoshida had just said he was going out to lunch.
They started to say "hai", "hai" - OK, yes -, then "Uh... so it's the same as Reactor 1? OK it's an emergency. I will issue emergency communication then..."
In the background at Fukushima I Nuke Plant, you can hear frantic workers scrambling to figure out what happened and what to do.