I watched this episode recently and it was the best one I had seen by far. In fact, it led me to researching Kajukenbo and this forum.
One observation was that in other episodes, Doug and Jim had to fight against others at their game (e.g. stick fighting in the Phillipines). In the Kajukenbo episode, the fights were using rules basically the same as Doug and Jim were used to, thus giving them an advantage as compared to other episodes. Regardless of the outcome, it was awesome!