Like all the networks just called it on the recent PA batch. Not exactly sure what their level of confidence had to be, less than one in a googolplex or something.
Fox is being cautious now after their experts called Az and Georgia. WSJ just called Biden with FT and NYT.
They called AZ too quickly and they know it. Biden's probably going to win, but there's too many differences from a normal election. It was obvious he was going to win PA though which all the networks held off. I think NV is pretty obvious too.
Edit... I just noticed that photo, a truly historic one, looks like it spells Trump on the newspaper.