Neil Diamond: Hot August Night: NYC (7 p.m., Ch. 2): Diamond performs in concert.
Who Wants to Be a Millionaire (7 p.m., Ch. 4): Regis Philbin hosts.
Mental (7 and 8 p.m., Ch. 13): The final two episodes of this series — which has not been picked up by Fox — air back-to-back.
Whale Wars (7 and 9 p.m., Animal Planet): The Sea Shepherds are infuriated when the Japanese whalers kill a whale.
Eureka (7 and 9 p.m., SyFy): Carter investigates a series of electrical anomalies afflicting the town.
NFL preseason: Rams at Jets (5 p.m., NFL Network); Broncos at 49ers (8 p.m., NFL Network)
20/20 (9 p.m., Ch. 4): A report on the 2008 tornado that decimated the town of Parkersburg, Iowa.
Monk (10 p.m., USA): Investigating the murder of a maid, Monk is distracted by a hit-and-run death.
Psych (11 p.m., USA): Shawn and Gus discover the wreckage of a plane crash that killed a billionaire — and it looks like it was murder.