That's where the special features make the difference. They are all well done and informative. The in-depth knowledge of the historical importance of the settings and the rich backgrounds and futures of the characters that Indy interacts with make for better stories. Knowing that the Germans envisioned the Battle Of Verdun as a battle of attrition, a battle to create deaths, not to gain any strategic ground, is an important turning point in the history of warfare and it informs the futility that Indy feels in the episode.

So, this vision of Lucas' of edu-tainment has come to fruition. One needs to be more informed to enjoy his entertainment and while enjoying his entertainment you can't help but become more educated. It's not for everyone. You have to want to make the effort to learn in order to enjoy. Watch the documentaries first (I know, it feels like eating dessert first to me too) and you'll find the episodes much richer for your effort.