Can we please figure out how to use apostrophes?
CDs, DVDs, the '90s, the Roaring '20s, there are weirdos along the way, not weirdo's.
If you're just pluralizing, don't put in a '. If you are eliminating a part of something to shorten it, put in a '. If something belongs to someone, put in the ', except with its.
The toy robot has a lightbulb: It is its lightbulb, or it's its lightbulb.
It's Tommy's robot.