This is just two people sitting in a room with a globe (or 2 globes if you count Karl's head) and chatting in a way to teach people English. But the characters here shine to their fullest. Ricky is trying in any way to provoke Karl while he is just sick of it. Karl's strong accent makes this even more hilarious and the way he is genuinely trying to teach the language to Chinese people and some others makes it hysterical (for Ricky as well). Almost every line is iconic as all of their scenarios are unfolding in funny or bizarre ways which contain some incredible one-liners from both men; Ricky in his playful manner and Karl in his usual frowny one. It's best if I don't spoil anything but I'll tell you my favorite line from Karl, ''I'd just wrap any old sh** up and give it to you.''
A case in point how even the simplest idea can be breathtakingly funny with the right people.
