On the October 25 episode of MBC's 'Infinity Challenge', Yoo Jae Suk and Jung Hyung Don had a moment where they opened up to each other.

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Yoo Jae Suk particularly talked about his love for 'Infinity Challenge', saying, "I feel bad when the time goes. Although every program is precious, honestly 'Infinity Challenge' is a program that changes lives. I don't know if this [feeling] started since some time ago, but [working on this show] has become fun."

He continued to mention his fellow cast member Park Myung Soo, saying, "Myung Soo hyung asked if it's fun because the show is doing well, but that's not the case. It's fun to do broadcasting with you (Jung Hyung Don) because you laugh and have fun and because Myung Soo hyung laughs and has fun."

He added that he didn't fear the end of the show, saying, "If I speak honestly, I frequently talk about when we can do this until and the people around me also ask, but I don't really worry about it. I worry about how to make things fun." He concluded, "I like [the show] because of that," showing that he genuinely enjoys the program.