Io9's sci-fi chart: possibly the geekiest post ever
The science fiction blog Io9 has a chart up at their site that tracks the themes that have been used on sci-fi TV shows since 1970. How many shows have been about time travel, robots, aliens, space travel, and/or mutants? Is there a trend to the themes of sci-fi shows over the years? (Here's the complete list of shows they looked at to create the chart.)There's probably a little controversy about shows like Get Smart and Bewitched being lumped into a "science fiction" category (and hey, if Bewitched is there why not I Dream of Jeannie? I think that was still around in 1970), but I'm impressed with some of the shows they remembered to include, such as The 100 Lives of Blackjack Savage (even if they do leave out the word "jack" in the title), Ark II, M.A.N.T.I.S., and Jennifer Slept Here. The chart attempts to explain which themes used to be popular and now are in decline and which ones continue to be going strong.
And now will come the inevitable comment, "but they missed _______!" Let us know who they missed in the comments below.

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