I have two supposedly identical ones for the Sega Mega Drive/Genesis, and interestingly, it won't fit in the console
Another interesting thing is that they're supposedly identical, but one has a visible flicker and the other doesn't:
Video slowed down 2x + sped up 2x to better see the interlacing:
https://www.youtube.com/watch?v=IApw0slMJpA
.