Events in Live Action Television that are not possible. '''only list examples that fit this description'''

* ''Series/HowIMetYourMother'' has an episode in which [[CrazyAwesome Barney Stinson]] references this trope literally, claiming to have transcended the impossible to a point where the impossible and the possible meet: [[MemeticMutation The Possimpible]].
* ''Series/MythBusters'' deconstructs this trope. They demonstrate what is possible and what is not.
* ''Series/BuffyTheVampireSlayer'' states that only one slayer can exist at a time; when one dies, the next awakens. That's what the Council decreed. The show skirts this trope with ''clinical death'' which creates two slayers, but doesn't fully play it straight until [[spoiler: Willow]] decides to break the rule and [[TheChosenMany wake up EVERY possible slayer.]]
* Subverted in ''Franchise/StarTrek''. Warp 10 is said to be the highest warp and it is; the only thing that increases is the speed of Warp 10. However, no matter how fast it becomes, it's still TravelingAtTheSpeedOfPlot and therefore not really changing at all.
** ''Series/StarTrekVoyager'' in the episode in which the warp ten barrier is introduced. Voyager reaches Warp 10 and [[spoiler:exists at every point in the universe, but also causes the humans on board to evolve into salamander-like creatures]]. The episode has since been [[CanonDiscontinuity officially disowned by the writers]].
** There were [[AllThereInTheManual two distinct warp scales]] used in Star Trek. The one that was used in original series was a cubic function (velocity '''=''' warp factor cubed '''x''' the speed of light) and had no upper limit. The one used from ''Series/StarTrekTheNextGeneration'' on is hyperbolic and made warp 10 equal to infinite velocity--even if you were traveling at warp factor 9.99999..., you would still be infinitely far from warp factor 10 in this scale. There was yet another warp scale used in ''All Good Things...'' and the future version of the Enterprise travels at Warp 13 on this new scale. Some of the ExpandedUniverse materials attempt to rationalize Warp numbers as being the most EFFICIENT speeds where there's a dip in the energy output needed to sustain the speed.
* The characters of ''DeepSpaceNine'' are used to a MirrorUniverse where they exist as brutal yet sexy version of themselves, but in the last mirror episode "The Emperor's New Cloak" Quark and Rom witness the death of Vic Fontaine -- despite the fact that Vic is not a real person but a fictional holodeck character in their universe. After trying to puzzle this out for a while, they just give up.
* ''Series/PawnStars'': Rick buys a car for Old Man's birthday and needs it restored. It's estimated that it would take 6 to 8 months to restore the car, and that's if [[NamesTheSame Rick the restorer]] didn't have any other jobs the entire time. Rick needed it in three, and somehow, it was done in three. While Rick's shop worked on other projects.
* ''Series/{{Seinfeld}}'': Parodied as part of Jerry's ridicule of Kramer's claim that Keith Herandez spat on him. He traces the imaginary path of the spittle which involves changing directions and pausing in mid air. "''that'' is one magic lugee." The point being to illustrate how impossible it was for the event to happen in real life.
* ''XenaWarriorPrincess'' features numerous Gods, (of Greek, Norwegian, Turkish and Roman orgins, [[CrossoverCosmology among others]]) which like any Gods, are {{immortal}}. This is a universe where ImmortalLifeIsCheap. For the first five seasons, it doesn't matter what you did to a god, they would '''not''' die. However, in the Season 5 finale, Xena gains the power to "Kill the unkillable." In the span of 12-15 hours after gaining this power, Xena had killed [[spoiler: Poseidon, Hephaestus, Deimos, Hades, Artemis and Athena]], with no signs of slowing down.
** Xena also features the title character [[spoiler: being impregnated by the redeemed soul of her archenemy, Callisto]]. When she discovers she [[spoiler: is pregnant]], she expresses the impossiblility of the situation, by slamming the doctor into a wall.
--> '''Xena:'''It's impossible! I cannot be pregnant. If you weren't such a quack, [[LampshadeHanging you would know that getting pregnant involves certain physical requirements that I haven't met in a long time!]] And I mean a very long time! No one, zilch, zippo. I am a love-free zone! Therefore it is utterly impossible that I be 'up the duff'. So what's your diagnosis now?!
--> '''Healer:''' Mood swings.
* Monica Mancuso from ''Series/LasVegas'' flies off the roof of the casino [[TheFlyingNun when a gust of wind catches the "winged-style" dress she was wearing]]. She flies around for about five minutes before crashing into a shoe store ''more than a mile away''. Characters spend the episode debating [[DiscussedTrope the impossibility of it]], and buying shoes from the store.
* ''DoctorWho'':
** After it had been made clear that it could never happen, [[spoiler: Rose reappears in the same dimension as The Doctor in "Turn Left."]] There's only one possible explanation: All reality is falling apart.
** [[spoiler: The moment you take your eyes off of one of the Silence, you ''completely forget about them.'' River]] wasn't just shooting something she couldn't see, she shot something she literally ''could not have known was there.''
** The Doctor can scare the Daleks, who are supposed to be ''physically incapable of feeling any emotion'', fear included.
** The Doctor also directly changes his past timeline, though as Rory puts it, [[spoiler: "To be fair, the Universe did explode."]]
** There are many things about Eleven's companion, Clara, that are impossible. For instance [[spoiler: being in more than one time and place at once, being killed in both, and showing up a third time.]] The way time travel works in Doctor Who should make it impossible for both Oswin and Clara to exist, and yet they do anyway.
--> '''The Doctor''': "''She's not possible.''"
* Series/HikoninSentaiAkibaranger stars showbiz sentai whose battles take place [[MindScrew more or less]] in their heads. [[spoiler: In episode #9,Nobuo transforms into Akiba Red for real through sheer HeroicResolve.]] [[spoiler:Tthey later discover that their whole lives [[BreakingTheFourthWall were a TV show.]] ]]
* Series/{{Supernatural}}: Two
** Everyone is limited to their own personal sphere of {{Heaven}} unless they are soulmates or their name is [[spoiler: ''Ash'' who discovered a means to '''hack''' Heaven and walk between the difference spheres, for the express purpose of partying with famous figures from history.]]
** The only thing that can kill an angel is another angel, but then without so much as saying anything about it, [[spoiler: it becomes possible with one of their swords.]] Justified because [[spoiler: their swords are manifestations of their Grace, which is what gives them the power to kill each other.]]
* Series/TopGear: Most of their Specials contain some instance of them [[WeDoTheImpossible doing the utterly impossible]]!
** Their reaction to to setting fire to a car-wash, which is made of "90% water".
** Being the first humans in history to ''drive'' across the Makadikadi Salt Pans as well as to the North Pole!
* Series/LevelUp: The weapon needed to kill [[BigBad Maldark]] is supposed to kill the heroes using it with its recoil. This information comes straight from the creator of Conquerer of All Worlds, Max himself. [[spoiler: The heroes survive it and he is shocked.]]