This is just a summary of all NCT's Iconic Moments since debut.
NCT Iconic Moments 2017
https://www.youtube.com/watch?v=u9Gv_cAb0kI
NCT Iconic Moments 2018
https://www.youtube.com/watch?v=lmh3cSQEQLA&t=40s
NCT Iconic Moments 2019
https://www.youtube.com/watch?v=GoZLkqWpLU0&t=746s
NCT Iconic Moments 2020
https://www.youtube.com/watch?v=V70ZkpUENTE&t=710s
sorry if there are errors in the video