Do they allow fans to watch those scrimmages if they have them.
They are open to public as far as I know. Many B1G teams put them up on their team schedule page. I've seen PSU mentioned on other's pages, including Penn, in past. But as stated elsewhere, it seems to take some detective work or lucky guesses.
It seems to be over before you know it, so it would be great if people would share their info.
One request to all: If you catch a game and decide not to share the info with us ahead of time, please don't bother to mention it to us. Sharing truly is caring. ; )