Depending on who you are, the worlds captured in "reality TV" can feel just like home, or like they're on another planet altogether. But even more interesting? That there are that many shows about the same eight topics.
"It's not your imagination — there really are that many reality shows about swamps, weddings, Louisiana, and cake. And here's visual proof: The following Venn diagram maps the overlapping relationships between reality shows. Included on this chart are only shows that aired in 2011, 2012, or are scheduled for or are in development for this season (and in a few rare instances, there are notes on reality-TV niches not yet filled). The reality-TV universe is even more repetitive and connected than you could have imagined."
I've only heard of a handful of these, but wow. I guess they're so quick and easy to produce, that the networks can keep up with each other easily.