All three games are interesting tonight IMHO:
Penn State at Ohio State 630, FS1:
For Penn State this is a humongous opportunity. A week and a half ago they lost to Maryland. That was their fourth straight loss and they looked to be dead in the water but since then they've won two straight. They are now 16-11/7-9. They just won a road game against the B1G's second worst team and now they get a chance to pick up a second consecutive road win by beating the B1G's worst (current) team. After tOSU, two of PSU's last three are at home (RU, UMD) so if they can win in Columbus then win their home games they'll head to Chicago at 19-12 and AT LEAST on the bubble.
For Ohio State this is their best remaining chance to win a game.
Michigan at Rutgers 830, FS1:
Both teams are 9-7 in the league so the loser is mathematically eliminated from the title race. That is academic but the game still matters.
As I see it, Rutgers is at a crossroads. Their last four are interesting because nothing looks impossible but nothing looks like a complete gimme either. They have good and very good teams at home (M, NU) and less good and bad teams on the road (PSU, MN). I feel like all four could go either way and there is a huge difference between heading to Chicago at 21-10 and heading there at 17-14.
For Michigan it is all about avoiding losses. They already have 12 so they can't afford many more.
Northwestern at Illinois 9, BTN:
In theory the Wildcats could lose this and still share or outright win the league title but, as a practical matter, they need to win out.