Question: How many episodes does the South Korean television series at which Jung Eui-chul reached the peak of his career have? 
Sentence (from "Boys Over Flowers (TV series)"): Boys Over Flowers () is a 2009 South Korean television series starring Lee Min-ho, Ku Hye-sun, Kim Hyun-joong (of SS501), Kim Bum, Kim Joon (of T-Max) and Kim So-eun.
Relevant evidence: No