"20/20" SORTS FACT FROM FICTION ON
"SUMMER: MYTHS, LIES AND DOWNRIGHT STUPIDITY,"
AIRING FRIDAY, JULY 4 ON ABC
Can you outsmart gas prices with gas-saving devices or book your wedding a year in advance based on a long-range weather forecast? To mark the July 4th weekend, "20/20" examines common summer myths and misconceptions, including on swimming, sunscreen, lightning and travel. "Summer: Myths, Lies and Downright Stupidity" airs on "20/20," FRIDAY, JULY 4 (10:00-11:00 p.m., ET) on the ABC Television Network. Myths include:
* Gas gadgets: Gas gadgets that claim to save money are flooding the market. But do they really work? John Stossel reports.
* Running on empty: Even when your cars gas gauge reads "empty," there is still more gas left in the tank. Is that a myth or does empty mean empty? John Stossel reports.
* Airline tickets: When it comes to buying tickets and the internet, are coach fares always cheaper than first class? Bill Ritter reports.
* Weather forecasting: Weather predictions translate to big business, but how accurate are they? Sam Champion reports.
* Lightning: Can lightning bring down an airplane? Elizabeth Vargas reports.
* Swimming: Is it dangerous to swim immediately after eating? Dr. Tim Johnson reports.
* Sunscreen: A high SPF gives you full sun protection. True or false? Lynn Sherr reports.
* Vitamins: Do healthy people really need to take vitamin pills to stay healthy? Dr. Tim Johnson sorts out fact from fiction.
Several of these myths are rebroadcasts.
"20/20" is anchored by Elizabeth Vargas and John Stossel. David Sloan is executive producer.