Japan's BS-TBS TV aired a one-hour special this week documenting the back-history of the classic Van Helan song "Jump," which remains to this day the band's only No. 1 hit on the Billboard Hot 100.  The documentary was posted online later in the week, and can be viewed in four parts below.  The documentary features interviews with David Lee Roth, Eddia and Alex Van Halen filmed just a few weeks ago at Roth's home.