WEEKEND TV : It’s a College Basketball Marathon

Talk about a TV marathon: CBS has at least nine hours of college basketball on tap today and another seven hours on Sunday.

Coverage of the second round of the NCAA championships begins both days at 9 a.m. The matchups today will be North Carolina-Rhode Island at 9 a.m., St. John’s-Arkansas at 11:45 a.m. BYU-Kansas at 1:45 p.m. and Duke-California at 4 p.m.

“Parker Lewis,” the comedy series for high schoolers at heart, rejoins the Fox lineup Sunday at 7 p.m. (11)(6).