NFL preseason (6 p.m., Ch. 2): San Diego Chargers at New Orleans Saints
The Gulf Is Back (7 p.m., Ch. 30): This concert to benefit Gulf Coast residents affected by the BP oil spill is hosted by David Hasselhoff. (Geez, haven't those people suffered enough?) Performers include Drake Bell, Bo Bice, Taylor Hicks, Lonestar, Brian McKnight, Ricky Skaggs and Ace Young.
Whale Wars (7 and 8 p.m., 10 and 11 p.m., Animal Planet): Pete boards one of the whaling vessels; the Sea Shepherds chase the whalers into an ice field. (Season finale)
Eureka (7 and 9 p.m., Syfy): Townsfolk are visited by people from their past.
Haven (8 and 10 p.m., Syfy): Is a ghost haunting the local clinic?
Blood Dolphins (9 p.m., Animal Planet): In the spirt of "Whale Wars" comes this series about Ric and Lincoln O'Barry's efforts to stop dolphin hunting in Japan.
Man, Woman, Wild (10 p.m., Discovery): Myke and Ruth go rafting in Utah, where they run into a raft of problems.