On the 1984 - 1990 U.S. TV series "Miami Vice", Sonny Crockett (Don Johnson) lived on a yacht (an Endeavor sailboat) in the Miami marina. His living arrangements on the yacht helped him to keep up a very active life as an undercover detective and drug dealing middleman (Sonny Burnett).

The lack of a fixed address specifically helped him to stay "off the local radar" and made him harder to find. His home with his watch-gator Elvis was formally known as the yacht, St. Vitus Dance. This yacht provided Crockett with an unorthodox and pleasant residence for entertaining his many female guests, who included both Gina and Theresa Lyons. They were individuals who regularly stayed on Sonny's yacht. Also there were associates from his undercover work, such as Jake Pierson, who would often visit Sonny on the sailboat to discuss criminal business.

More Info: en.wikipedia.org