I've had plans on doing this for a while so here it is: Dragonball Errors. Please note that I'm far from done with this. More errors will be included as I find them. I hope this topic gains popularity by the folks of Daizenshuu EX and I hope you will join me in my quest for finding these errors.
[All pictures posted are from the Dragon Box, except Fusion Reborn]
Yamcha changes clothes (in) Episode 124(This Error was fixed in Kai)



Dr.Gero loses his hand in Episode 132 (Not an Error)

But in Episode 133 his hand is shown when Android 17 snatches the shut-down device
Vegeta changes his armour (in) Episode 78
Vegeta in his correct armour (Not an Error)

Then after the scene with Frieza killing King Vegeta, BAM!

Goku's eyebrows should be blonde
Frieza losses his scouter (in) Episode 78
Before Frieza kills King Vegeta, he sits on his throne (Not an Error)

But as soon as he stands up, it's gone
Misspelling of the word Capsule (Honestly, I make spelling mistakes, but this?
Episode 46
After the Spaceship flies off it's back to normal

Now this one I just hate! I always noticed this even as a child.
Krillin changes clothes (in) Episode 87
Here we see Piccolo telling Gohan and Krillin that it's time to go. (Not an Error)

Then Krillin's clothes magically change as he flies off


This is not an Image Error!
When Vegeta Finds out about Trunks being his son, he says something along the lines of he thought that Saiyans could only have black hair. Why would he say this? Because when he was a child he was around other Saiyans that had different colored hair? (This is the English version; I'm not sure if the Japanese version says the same, so someone can correct me). But as you can see: blue hair and blonde hair & some kinda red-ish hair

Fusion Reborn Movie
Here we can see Goku explaining how to do Fusion

Then we get a side shot of Goku and BAM! Why did you switch Goku?

Then it goes back to him wearing the blue under shirt as you can see























