The purpose of this study is to find out and describe types of aspects in Conversation Analysis on The Big Bang Theory TV Series Season 3 Episode 15 entitled “The Large Hadron Collider”. This study focuses on the conversation involving five characters in the TV Series namely Leonard, Sheldon, Penny, Raj, and Howard. The methodology used is qualitative method. Thus, the data were collected by observing and analyzing the dialogue transcript, viewed from m.imdb.com, spoken by the characters in The Big Bang Theory TV Series Season 13 Episode 15. Furthermore, the technique of the data analysis uses the theory proposed by Maynard (2013) on conversation aspects. The results of this study show that in The Big Bang TV Series, there are several aspects used in the conversation including opening and closing, topic management, turn-taking, adjacency pairs, repair, and feedback. The aspect that is mainly found is turn-taking, the number indicates that there are 187 turns because the data of this study is conversation between friends. The researcher also found out that in the pairs of turn-taking, the adjacency pairs found are mostly utterances by one character met by dispreffered responses by another.