Last year when I was in Alaska, our group coincided with the BBC who were filming in Katmai National Park in the south west of the state. We were there to watch the Alaskan brown (aka grizzly) bears catching salmon as they returned from the sea. It was a little early for us, but the BBC were there for several weeks and the results are being shown tomorrow on BBC1 at 9pm.
I'm not sure whether it's a one-off programme, or whether it will be the first in a series, but if you're in the UK and able to tune in, it should make for great viewing.
You can see my stills of the same location in my "Alaska 2012" folder: http://www.alexinthewild.com/p682625305