NCAA men's basketball tournament (7 p.m., Ch. 2): The championship game -- Connecticut vs. Duke20/20 (7 p.m., Ch. 4): Reports on allegations of racial discrimination in Lubbock, Texas, and on how easy it is to buy prescription drugs on the Internet.
Ally McBeal (7 and 8 p.m., Ch. 13): A pair of episodes from last fall in which John Ritter guest stars as a client who's also Elaine's boyfriend -- but who finds himself attracted to Ally. (Repeats)
The Century (8 p.m., Ch. 4): Part 1 of this excellent six-part, 12-hour documentary tells the stories of Charles Lindbergh and of America's effort to land a man on the moon.