Maybe “became” since it’s been bad for quite some time, not really new?
It's either
"Fox News has almost became unwatchable ..."
or "Fox News has almost become unwatchable ..."
I took the easy way out by picking on a letter. Could be one of the words shouldn't be there. As previously mentioned, I'm not good at decodes.
But. you're right, it's not really new. They've been unwatchable for a long time, now.