We go to bed with them almost every night and I want to spread the word so they stay popular. The first one is JapaneseStuffChannel and they do a new video every day.
The second one is Japanese Manhole Covers by Compile. He doesn't get a ton of views and I have no idea why. They're super relaxing and shows different parts of Japan, I love them. I would suggest turning the sound off and just driving along with them.