Slow television is the uninterrupted broadcast of an ordinary event from start to finish. Early efforts included burning Yule logs on TV around Christmas and driver’s views of complete British rail journeys (not to mention Andy Warhol and the pitch drop experiment), but Norwegian public television has revived the format in recent years. The first broadcast was of a 7-hour train trip from Bergen to Oslo, which was watched at some point by ~20% of Norway’s population. You can watch the entire thing on YouTube.
Not content with that, in 2011 an entire ship voyage was broadcast for 134 continuous hours. The entire voyage is available for viewing, but you can watch a 37-minute time lapse of the whole thing if you can’t spare the 5½ days:
As the show progressed and the ratings climbed (half of the Norwegian population tuned in at some point), the show became an interactive event, with people meeting the ship along to coast in order to appear as extras in the cast. Some even followed in smaller boats, filming as they went along in the ship’s wake.