To Watch Tonight

What to watch as Barack Obama picks up another critical endorsement ... • College basketball: Notre Dame at Louisville (7 p.m., ET); Southern California at Arizona (9 p.m., ET). I'm having a Pac-10gasm. [ ESPN] • College basketball: Saint Louis at Saint Joseph's (7 p.m., ET); Michigan State at Wisconsin (9 p.m.) [ ESPN2]; Washington State at California (11 p.m., ET) [ FSN]. Two Saints enter, one Saint leaves. • College basketball: CIAA quarterfinals, teams TBA, (7 p.m., 9 p.m. and 11 p.m., same-day tape) [ ESPN Classic]. That's the Central Intercollegiate Athletic Association, you know.