Hi,
TVING programs keep being listed here as tvN ones-it simply isn't accurate. The Witch's Diner is one such show. Since TVING is joint owned by CG E&M (owner of tvN/OCN/Tooniverse etc), JTBC, and Naver and much of their content-which is online, not on TV (another distinction from tvN), even though they DO sometimes show tvN content ON TVING, it needs to be separated properly as its own entity. They fully split in September of 2019; they're also financially separate ie a tvN/jTBC subscription no longer gives access to their programming for people in SK.
Note: the wiki page is not complete in terms of programs, but it has the basic info.
https://en.wikipedia.org/wiki/TVING