Tennis (noon, Ch. 5): Wimbledon men's semifinals

John Adams (2-11 p.m., HBO): This great miniseries is repeated.

U.S. Olympic trials (7 p.m., Ch. 5): Swimming

A Capitol Fourth (7 and 8:30 p.m., Ch. 7; 9 p.m., Ch. 11): Huey Lewis, Jerry Lee Lewis and Taylor Hicks perform. (Taped)

Triple A baseball (7 p.m., Ch. 14): Tucson at Salt Lake

Macy's Fourth of July Fireworks Spectacular (8 p.m., Ch. 5): Kenny Chesney, Gavin DeGraw, Katherine McPhee and the New York Pops perform. (Taped)

Boston Pops Fireworks Spectacular (9 p.m., Ch. 2): Keith Lockhart conducts the Pops; Rascal Flatts performs; and we're promised 23 minutes of fireworks without commercial interruption. (Taped)

Dateline (9 p.m., Ch. 5): A report on the Year of the Tornado.