I won't debate what effort went into Americanizing and tweaking the series, but I do have something to note.
Memories from my childhood watching Dragon Ball Z on YTV back when they actually aired anime on TV here...
The opening, https://www.youtube.com/watch?v=XdFy2lWc3lo
Effort?
Half the lyrics are an (sometimes incomplete) rendition of the show title.
Then again songs which are just about only the same thing repeated over and over have always annoyed me.