20/20: Lost at Sea/Taste Test/Mindless Eating

First, a new unscientific taste test to see if people's perceptions of vodka are true. Then, a repeat of an investigation of mindless eating - how subliminal messages, not hunger, determines how much we eat. Finally, another repeat of the astonishing footage of the daring Coast Guard helicopter rescue from the deck of the ship tossing on rough waters hundreds of miles from land.