First episode is supposed to be about zombie movies but more than half of the episode they speak about Walking Dead TV show. The didnt even mention Resident Evil movie which went further than all other movies in zombie species. And more it was Resident Evil movie that brought zombie topic back on the screens in 2000s not "28 days later". Nothing about "I am a Legend" too.
So this episode is a commercial and has nothing to do with history.
All other episodes are good and informative. Sad that there were nothing about sci-fi horror movies like Aliens and so on. But maybe they release it in near future.