I'm only 20 episodes through this but I thought it was time that this show got another review. I watched this in the hopes of finding a Smile You 2.0. which Cheer Up, Mr. Kim definitely is not. While it certainly has some of the elements that made Smile You special (families from different backgrounds jutting up against each other, big company politics), but it lacks the comedy and wackiness that I loved from that show. However, that doesn't mean that Cheer Up is somehow substandard or bad. This is just a different show. And I instead fell in love with it for an entirely different set of reasons. I mean, I'm really hooked on this show at the moment. This show is cute. And not in a icky sort of American cheese way. Cheer Up is cute in a "god damn, some of these people have it tough but they're still lovely" sort of way. You will fall in love with pretty much all of the characters, especially Mr. Kim and his three wards. All of them are well written and well acted. The child actors are some of the best I've seen so far in dramaland. I won't go into the story at all as it still has about 80 episodes to go and it really wouldn't be fair to review. All I can say is that so far I found all of the stories told in the show riveting. None of the plot-lines are particularly grand or extraordinary. They're just executed in an efficient and entertaining way. This is must watch television.