History YMMV / StarTrekS3E23AllOurYesterdays

* SugarWiki/VisualEffectsOfAwesome: The supernova at the end of the episode, with the planet being wiped out by the shockwave.

* MyRealDaddy: Due to less than popular reception and unfortunate implications of “Turnabout Intruder”, many consider this episode to be the true final episode of the Original Series.

* MyRealDaddy: Due to less than popular reception and unfortunate implications of Turnabout Intruder, many consider this episode to be the true final episode of the Original Series.

* HilariousInHindsight: The library is using silvery hand-sized discs as data storage devices. Very sci-fi, back in TheSixties! And now consider that today you can buy TOS (and thus this very episode!) on blu-ray and DVD...

* SpecialEffectFailure: Apparently the script and filming departments didn't keep the special effects department in the loop--in the scene where Kirk is examining one of the history disks, the image it shows onscreen is quite clearly from an Old West time period (fitting, for someone of Kirk's background and interests). But the period he ends up in when he rushes to rescue the screaming woman is instead in a Renaissance[=/=][[TheCavalierYears Cavalier Years]] time.

* TheissTitillationTheory: Zarabeth is wearing some rather scanty animal skins under her fur. But Will was careful to cover that bellybutton!

* SpecialEffectFailure: Apparently the script and filming departments didn't keep the special effects department in the loop--in the scene where Kirk is examining one of the history disks, the image it shows onscreen is quite clearly from an Old West time period (fitting, for someone of Kirk's background and interests). But the period he ends up in when he rushes to rescue the screaming woman is instead a Renaissance[=/=][[TheCavalierYears Cavalier Years]] period.

* VisualEffectsOfAwesome: The supernova at the end of the episode, with the planet being wiped out by the shockwave.