Norway: the country that brought the world a 134-hour-long live broadcast of a boat trip along the nation's long and pristine coast, and the country that crafted an eight-hour documentary on firewood, comes a new stunt: a 30-hour-long television interview with one of its most eccentric figures.

The event, which began airing live Wednesday morning from Oslo on Norway's biggest newspaper's website, is intended to set a record for the longest interview. "We are known for breaking boundaries," Ola Stenberg, Managing...