CRAZY JAPANESE LESSONS is a YouTube channel from the Fuji Television Network company. They release lessons once weekly on Sunday mornings starting at 5am JST. The lessons are very professionally made, and hosted by comedian, Nobuyuki Tsuchiya, and his puppet partner, ぺるり (Peruri). The videos are super bite-sized, usually coming in under two minutes. As the name "CRAZY JAPANESE LESSONS" might suggest, they tend to focus on teaching a funny idiom or expression used in Japanese, including how it originated. CRAZY JAPANESE LESSONS also includes subtitles in both Japanese and English, though the English subtitles definitely take precedence.
While CRAZY JAPANESE LESSONS doesn't offer a complete course in Japanese, they're certainly entertaining, and a fun way to learn new expressions to try out on your friends.