EDIT: Wrong forum! Sorry people, this was to go in General. I'm compiling a list for a friend who hasn't time to watch a lot. I found this thread, but it's far too extensive. My list is minimal. I'm trying to include all the important story arcs and themes, e.g: The Borg Species 8472 Dreams; hallucinations; illusions Boothby Q Eugenics/Augments Crossovers between series Mirror universe Time-travel Nazis Data and the Doctor dreaming or becoming more human; Dr. Soong Transporter accidents Commander Shran's friendship with Archer Federation-Klingon War Dominion War What themes do you think should be included? What I need help with are hidden-gem episodes, like One Little Ship, The Haunting of Deck Twelve and Distant Voices. I have no reliable way of finding these episodes. They fall under no convenient theme, or constitute a theme of their own. What hidden gems do you know?