Just one. But it takes five episodes.
Q: How many Canadians does it take to change a lightbulb
thread! Q: How many feminists does it take to screw in a lightbulb A: THAT'S NOT FUNNY!
None. Who do you think broke the filament in the first place
None, they all know someone that does it for them.
Find out next time on Dragon Ball Z!
Just one, but it takes three episodes.
Hope you're ready for the next episode
Just one. But it takes 20 episodes