Years ago a Brazilian family that set off sailing around the world made an agreement to send short 5 minute "reports" to a large TV channel. These reports were aired weekly in segments during another show on Sundays during prime time. They were an astounding success and the country followed their circumnavigation eagerly. They returned to Brazil celebreties. Who would have guessed it would have been so popular?
BTW, the family made a wonderful documentary about their second circumnavigation, following the route of Magellan. You can watch the whole movie on Youtube. Here is the trailer: