Please do not use "oriental" because it is derogatory and insulting. Many people prefer the use of "Asian" instead. "Oriental" has the connotation with rugs, furniture, tea, food, etc., not people. Also, "oriental" is used by others to put Asians in an unflattering light, a demeaning way. When people continue to use the word, it only encourages others in thinking the two terms are synonomous and equally acceptable. They are not. As a Korean, I definitely understand Japan doesn't exactly have a blameless history. But does any country have one? You can't justify what a television show does (portray negative stereotypes of a racial group) by pointing fingers at people of that country. Both are wrong and let's leave it at that.
Eunice