Best-bets for July 5: It’s a good-shark/bad-shark night
1) “Shark Beach With Chris Hemsworth” (show here), 9 p.m., National Geographic. TV’s shark summer is back: “SharkFest” starts today, for a six-week run on two Nat Geo channels; “Shark Week” is July 11-18 on Discovery. We’ll see lots of creepy creatures, including (at 8 and 10 p.m. today) “When Sharks Attack” and “Rogue Shark?” But “Beach” has a feel-good tone. Hemsworth says he “grew up in paradise” in Australia and surfed at 6. He meets diving veteran Valerie Taylor … and sees his first great white. Read more…