Textless materials/production slates/other stuff not intended for viewers that somehow made it on-air

[Vuxovich]

I think you've gone off-topic, as unlike the example RandomMe wrote that whole episodes aired in M&E track only, the example above happenes only for one line and it's actually more like dubbing studio's fault rather than broadcaster's/streamer's.

Please accept my apology!

 

[SpecialColorfull]

Hirogaru Sky Precure had the famous

Spoiler: MAJOR HIROGARU SKY SPOILERS

Dark Sky Scene have the animation data in the finished copy of the episode that was given to Crunchyroll. Like you could see numbers and words that are hidden by the colors but are still visible.

 

[RandomMe]

Please accept my apology!

Apology accepted.

 

[Vuxovich]

According to Spongebobia, this happens during a bubble transition in Squidville:

For a brief second, both the animation studio's name and a date are mentioned during a bubble transition.

 

[Moleoman]

Most of Nelvana's uploads of "The Fairly OddParents" episodes on Japanese Treehouse Direct YouTube channel (which are unavailable in the US) begin with last seconds of Nick Asia technical slide:

 

[Vuxovich]

Does this count?

The Serbian dub of Pokémon Chronicles' episode that is ''Training Daze'' is incomplete because Happy TV got a copy with the first half being the first part of that episode and the second half being the last part of the next one. I couldn't find a video, but I am telling to you what happened when Chronicles aired on Happy TV.

 

[MagiaDiWinx]

Does this count?

The Serbian dub of Pokémon Chronicles' episode that is ''Training Daze'' is incomplete because Happy TV got a copy with the first half being the first part of that episode and the second half being the last part of the next one. I couldn't find a video, but I am telling to you what happened when Chronicles aired on Happy TV.

Honestly Happy TV was always awful

 

[fly]

"Bubblestand" from SpongeBob has this very brief frame of someone holding a clapboard in one part

 

[1440kHz]

From HBO Max Asia