For me, my A500 had been sitting on top of my wardrobe in its box for several years after I got my first PC.
I think I got it out one day and realised the modulator and PSU was missing, so put it away, knowing I couldn't possibly use it (what was I to know i.e. Scart cables).
After chatting on this forum about it, I realised that AmigaKit were selling RGB to Scart cables, so picked one up (along with a new PSU).
The rest, as they say, is history.