February 15, 2020 (edited) , KOに번역する (번역を見せる) , ENから번역されました (원본을 보여주는)
No card was available on Store in 4K resolution prior to Premium membership introduction; moreover it is not - and it has never been - possible to download any 4K card content if you don't have a Premium membership.
I can only talk about cards, though. I don't know anything about VR shows, since I didn't ever buy one.