Dragon Ball Z Kai

According to Dende it takes about 100 days to make the Dragonballs from scratch.

Although not mentioned in this episode in the original series Chi-Chi made Goku and Piccolo get there drivers license in the episode Goku's Ordeal.

We find out that once a Namekian merges they can never split apart again.

Look closely when Bulma is viewing Android 16's Memory Banks the images that appearing on the screen show Goku after he defeated Nappa, A picture of Master Roshi's House, him performing a Spirit Bomb against Great Ape Vegeta, and his first Kamehameha Wave as a kid.

We find out that if you are in the Hyperbolic Time Chamber for longer than 48 hours than the door to the entrance will disappear forever.

We find out that a Pure Saiyan maintains the same Hair Style from the day he/she is born.

This is Bulma's first time at Kami's Lookout.

This is Goku's first time seeing Cell.

According to Trunks, Vegeta and him broke the Super Saiyan Barrier within the first 2 Months in the Hyperbolic Time Chamber.

Goof: In FUNimation's English dub of the episode, Yamcha refers to Trunks as "Future Trunks" even though he has yet to figure out Trunks' actual name or identity.

Goof: Dr. Gero's left arm was cut by Piccolo a few episodes ago. Even so, in this episode it is mistakenly restored suddenly when Dr. Gero is warning Artificial Humans No. 17 and No. 18 to not wake Artificial Human No. 16 up.

In the Japanese version, Android 20 rams his hand through Yamcha's chest and out his back, then when he pulls his hand out, there is a splash of blood. These scenes are deleted from the English dub.

According to this episode, Vegeta weighs 135 lbs.

Goof: Goku was telling his story on how he escaped from planet Namek. However, he is seen screaming while in the air, and then, momentarily at Freeza's ship beating the control panel.

According to Vegeta, the hair of a true Saiyan is always black.

We find out that Trunks is 17 Years Old.

Trunks is the last person to have his power level stated in the series, with a reading of 5 due to his suppressing his power to mislead Freeza and his men.

In the Japanese dub of this episode, when Trunks blasts a hole through King Cold, we see blood come out of King Cold's mouth, and when he hits the boulder behind him, as he slides to the ground, we see a hole that goes right through him and you can see the boulder through the wound and blood spatter on the boulder after he hits the ground. In the English dub, the blood is removed and the hole only went through the armor. The hole in his body is covered.

In the Japanese dub of this episode, after Trunks cuts up Freeza, we see the chunks of him floating in the air just before Trunks blasts him into dust. In the English dub, the part with the chunks floating about is cut out.

Bulma claims that she never saw Freeza. But She actually saw him twice on Planet Namek once in his first form when she, Gohan, and Kuririn where hiding in the cave, and after she got her body back from Captain Ginyu in his final form.