This is inspired by the VOYAGER thread. The goal here is to eliminate all episodes that are unique or semi-arc like, until we are left with just a general episode that represents the series or franchise. Here is the list, in production order... Encounter at Farpoint The Naked Now Code Of Honor Haven Where No One Has Gone Before The Last Outpost Lonely Among Us Justice The Battle Hide And Q Too Short A Season The Big Goodbye Datalore Angel One 11001001 Home Soil When The Bough Breaks Coming Of Age Heart of Glory The Arsenal of Freedom Skin Of Evil Symbiosis We'll Always Have Paris Conspiracy The Neutral Zone The Child Where Silence Has Lease Elementary, Dear Data The Outrageous Okona The Schizoid Man Loud As A Whisper Unnatural Selection A Matter Of Honor The Measure Of A Man The Dauphin Contagion The Royale Time Squared The Icarus Factor Pen Pals Q Who Samaritan Snare Up The Long Ladder Manhunt The Emissary Peak Performance Shades Of Gray The Ensigns of Command Evolution The Survivors Who Watches The Watchers The Bonding Booby Trap The Enemy The Price The Vengeance Factor The Defector The Hunted The High Ground Deja Q A Matter of Perspective Yesterday's Enterprise The Offspring Sins Of The Father Allegiance Captain's Holiday Tin Man Hollow Pursuits The Most Toys Sarek Menage a Troi Transfigurations The Best of Both Worlds The Best of Both Worlds Part II Suddenly Human Brothers Family Remember Me Legacy Reunion Future Imperfect Final Mission The Loss Data's Day The Wounded Devil's Due Clues First Contact Galaxy's Child Night Terrors Identity Crisis The Nth Degree Qpid The Drumhead Half a Life The Host The Mind's Eye In Theory Redemption Redemption II Darmok Ensign Ro Silicon Avatar Disaster The Game Unification II Unification I A Matter Of Time New Ground Hero Worship Violations The Masterpiece Society Conundrum Power Play Ethics The Outcast Cause And Effect The First Duty Cost Of Living The Perfect Mate Imaginary Friend I Borg The Next Phase The Inner Light Time's Arrow Time's Arrow, Part II Realm Of Fear Man Of The People Relics Schisms True Q Rascals A Fistful of Datas The Quality of Life Chain Of Command, Part I Chain Of Command, Part II Ship In A Bottle Aquiel Face Of The Enemy Tapestry Birthright, Part I Birthright, Part II Starship Mine Lessons The Chase Frame Of Mind Suspicions Rightful Heir Second Chances Timescape Descent Descent, Part II Liaiasons Interface Gambit, Part I Gambit, Part II Phantasms Dark Page Attached Force of Nature Inheritance Parallels The Pegasus Homeward Sub Rosa Lower Decks Thine Own Self Masks Eye of the Beholder Journey's End Firstborn Bloodlines Emergence Preemptive Strike All Good Things... I will start with "Genesis". A disease where the crew devolve into creatures from thousands of years in the past on their homeworld? Find me another episode that does something like this.