I believe I saw this video about 2005-ish, so it could be much older than that. An old-fashioned challenge match where a pure Karate man has entered a BJJ (or possibly Vale Tudo) gym and challenged them to a fight, somewhere in Brazil.
Back before MMA was popular, many people completely underestimated the importance of grappling skills and believed they could prevent takedowns and never go to the ground, despite having zero experience in takedown defence and grappling.