I think they do, or often do. It would be good to splice the publication date and filming date directly into the video. I know it's a bit of a pain to do this and that when they are already trying to mocap and cgi and render etc but scientific reasoning would compel one to place relevant data points wherever reasonable into the production itself.
On top of that you can actually make it look cool. Remember how x files would begin a scene with a short blurb about time and place? (it was just the city not the latlong). I like that a lot better than having an MC state the data. Instead just put the blurb.
In fact this is what was helpful with that brief ominous piano music Farsight used to put more often.
In fact: courtney remember how you said "you can only introduce yourself once?" - this us a principle in marketing I'm not sure what it's called. But marketers are careful not to betray their original branding even if they decide later they don't like some of the original idiosynchracies.
I remember one Ninja Turtles movie (I think 2 or 3) where April O'Neill was no longer a blonde chick but some sort of black haired slightly asuan girk I think.
I was like "WWWW TTTTT FFFF !!!???" She's supposed to be a white blonde chick this is so stupid ... they fixed it later. Anyways.
Farsight: data point stamps are good. And please maintain patterns from your original branding where you can. Like that little piano jingle tgat's short and simple but everyone who's heard it now knows: "that's Farsight"