These programs celebrate superlatives. In the splashy, Olympics-inspired Air Jaws: Going for Gold (Monday, July 12, 8/7c, Discovery), experts keep a leaderboard for breaching great whites in South Africa, awarding medals for speed, hang time and height. They capture the highest breach ever filmed in Chris Fallows’ popular Air Jaws franchise. Dr. Tristan Guttridge and conservationist James Glancy attempt one of the longest dives in The Great Hammerhead Stakeout (Sunday, July 18, Discovery+). Rather than surface during their 10-hour mission to find out why critically endangered great hammerheads are congregating at Andros Island in the Bahamas, the Brits rest (and enjoy a cup of tea!) in a tentlike underwater break room. The ocean’s fiercest face-off is the focus of Orca vs. Great White (Tuesday, July 6, 10/9c, National Geographic). Knowing…