Tivo Guide Week of August 2, 2010 *spoiler alert*

"Shark Bites: Adventures in Shark Week" "Late Late Show" host Craig Ferguson goes diving with sharks in the Bahamas. Wednesday at 10 on Discovery.

"Friday Night Lights" In the Season 4 finale, the Taylors host Thanksgiving dinner. Elsewhere, Eric advises Vince to act more selfishly; a visitor surprises Julie and Landry; Tim makes a tough call; and East Dillon shows support for the Lions. Friday at 8 on NBC.

"Army Wives" Dr. Jill Biden (as herself) visits the fort and discusses challenges faced by military families with a deployed relative; Denise is caught in the middle when her sisters come to visit and bicker throughout their stay; Trevor's unit runs into trouble; and Roland aids Chase as he attends therapy. Sunday at 10 on Lifetime.