MBC 51st Anniversary Special Project 'Horse Doctor' placed last after airing its first episode on October 1st. The reactions of the netizens were split between "it's interesting" and "it's a disappointment".
After the second episode aired on October 2nd, one netizen listed the problems with 'Horse Doctor' and said, "The male child actor does not know how to act cute. The outside lighting makes me think I'm watching an old movie. Also, the lines are all cheesy and the editing is choppy. Is this drama really directed by Lee Byung Hoon?"
Other netizens have also stated their disappointment on the message boards. They said, "The childhood casting is not particularly good", "'Dong Yi' was also boring in the beginning; this drama feels the same", "I don't expect the ratings to be high for this one", "There is a lot left to be desired for start of this drama", "This drama feels old-fashioned", and "It doesn't have a trendy feel to it at all."
However, there are a lot of words of encouragement as well. There were plenty of kind words like "The childhood actors, they're pretty decent", "It has a Lee Byung Hoon-feel to it so I like it", "I am more excited to see Jo Seung Woo and Lee Yo Won act", "It's more fun than I expected", "I have good feelings about this drama", and "I look forward to watching more episodes."