It looks like you're trying to combine several popular Korean variety show concepts into one fan guide. Based on the keywords you provided:
The "Prodigal Sons" Narrative
To understand the impact of NU’EST’s appearance, one must understand the context. When NU’EST first appeared on the show in 2017 (Episode 84), they were fresh off the survival program Produce 101 Season 2. They were no longer rookies, but they weren't yet the top-tier icons they would become. They carried the heavy label of "dol-to-ja" (idols who return to their roots after failing to make it big).
- Lee Soo-geun: The wily veteran who can turn any game into a gambling den.
- Kang Ho-dong: The former wrestler with a heart of gold and a brain that occasionally short-circuits.
- Seo Jang-hoon: The basketball giant who is the butt of every divorce joke but delivers the sharpest comebacks.
- Kim Heechul & Min Kyung-hoon: The visual duo known for their "Heroine" sketches and savage bickering.
- Lee Sang-min & Kim Young-chul: The lovable losers who wear their embarrassments like badges of honor.
Their journey on the show is often cited by fans as the "verified" turning point of their career—a masterclass in how variety show chemistry can redefine a group's identity.