What has happened to our local PBS channel?

The picture appears to have been sent through a shreader, then pasted back together, not quite lined up.
None of the other channels look like this, including the other PBS station from Tacoma.

I know I’m not drunk, and I’m pretty sure I haven’t had a stroke.

Is it cable, or antenna?

Channel 9, yes? Both 9 and 109 (one of the two HD broadcasts of it on Comcast; I always forget that 108 is also KCTS) looked fine when I checked them a minute ago.

Could it have been the specific program that had been on? It was Great Performances when I checked, but that started at 9, I think.

Duck Duck Goose, it’s cable.

Leiko, yes, channel 9, and yes, it has cleared up since I posted. It cleared up at the end of Antiques Roadshow. It was messed up for a bit under 2 hours.

I’ve never seen anything like it. It wasn’t the pixel boxes that usually screw up the HD picture.