I didn't really watch it, but my grandpa watched the 2016 one, and he kept replaying "Color of Your Life" whenever he got the chance since then. (Many older people in Poland didn't like Michal Szpak because of his style (long hair, makeup, etc.) but my grandpa loved it.) It's a warm memory now.
The first that I have personally watched fully was the 2024 one. I remember coming back from a friends birthday party, I was helping my mom with the chores, and when I flipped the channels, I said "Oh, mom, the Eurovision finale is on," We watched it, and from then on we agreed to watch it each year.