[ILOVEJAPAN]

I'm not exactly sure what "nice boat" reffers to, but I think the story behinde it is something like this:

After an incedent involving a girl killing her father occured the TV station that was airing the show pulled the last episode because it involved plot lines similear to the actual crime. So the TV station filled the half hour with classical music and nice images. When the TV stations representative was asked to make a statement he said something like "Nice Boat" and it kind of became a pop-culture thing.

I'm not really 100% sure about that (it dosent make much sence does it?)

I think it also has somthing to do with the last few seconds of animation being one of the characters floating on about ***SPOILER*** holding her ex-boyfriends severed head