The story was based on the episode "Metallo", so a number of scenes in the video are from that episode. But I also noticed scenes from "Double Jeopardy" (Superman sitting on the ledge, wrapped in his cape) and "Lucky Leon" (the final kiss), plus the black & white 'flashback' scenes are from "Barbarians at the Planet" and "House of Luthor". There are probably other episodes represented, so if there is a specific scene you are wondering about that can't place, let us know and I'm sure we can figure it out.
Kathy