I have to hand it to LeVar... He is right quality education programming is scarce. Well outside shows for babies to four year olds.
Heck entertaining educational television is rare... and I am someone who would LOVE educational shows and videogames for adults that weren't flat boring documentaries. (Honestly game developers and indie developers.. NO ONE interested in a videogame that teaches you advanced chemistry in a fun way? Ancient Cultures? or even math? Do people just become adults and decide that learning isn't fun?)
I'd say there are some games that fit those criteria to various degrees. I also disagree on documentaries being flat and boring, i'd argue that most of them are needlessly dramatised and sensationalized to the detriment of the educational value, but some manage to strike a good balance, for example, meerkat manor was pretty entertaining and engaging, and although most of the narrative was staged, it made a pretty honest attempt at being informative.
On games it's mostly incidental or done to add flavor, but i'd argue the age of empires series was a pretty good intro to ancient and medieval history for many people, and paradox grand strategies go quite a few lengths further.
Games like KSP reward and encourage real world knowledge on math, physics and aerodynamics. DF does this to some extent too, with geology and metallurgy. I know i'm a bit more knowledgeable because of these games.
finally, URW always felt a bit like experimental archaeology to me, and it's apparent disinterest in aesthetics and gamey mechanics, and obsession with realism gives it something of a "documentary" feel