Question: why is tvxq and dbsk?
Answer: Koreans have always called them dong-bang-shin-ki and that's where DBSK came from. However their official name(the name that they debuted with) is TVXQ which comes from their Chinese name Tong-Vfang-Xien-Qi. ... DBSK came from the Korean pronunciation, Dong Bang Shin Ki. THSK came from the Japanese version, To Ho Shin Ki.