day There is more contact than you'd imagine between the two countries.
Until recently, there was a joint industrial project between them (Kaesong) in NK with Koreans from both sides working together.
There are tons of TV shows with people who escaped from NK (like panel show kind of things). There's one called 'Now on my Way to Meet You' where they do dance routines and sketches and stuff. That girl that did the TED talk (Park Yeonmi) was on it for a while.
The SK government monitors NK TV too and if they say something particularly mad, they show it on the news (jolly NK newscasters saying 'we will bomb the imperialist scum into hell! Have a wonderful evening! Good night!' And we get Kim Jong Un on TV pretty often, like every time they have a big general meeting. I actually think they maybe let SK cameras in to see those, because the quality is really good when I think about it.
Some high level government people will occasionally be allowed to go to the west to do stuff like join in in international festivals and whatnot. My husband randomly met a NK woman when he was on a business trip to France, she was running a stall about agriculture in NK. They chatted a lot and he tried to help her do something (lift something heavy or something, I don't remember). He said her accent when she told him not to help sounded soooo harsh (SK tend to talk quite politely unless they're angry.) But then she said he reminded her of his son and gave him an apple and invited him to dinner, but he was too scared to go haha.
There are lots of films and dramas where there are NK characters (usually soliders), like if you watch the first episode of Descendants of the Sun (madly popular drama), the first scene has soldiers with NK accents.
So there is actually quite a lot of contact which I was also surprised about.