History

Time	Change
2009-07-28 13:22:45+00:00	Created
2009-07-28 13:22:45+00:00	Associated with NHK
2016-05-07 03:38:53+00:00	Associated with 日本放送協会
2016-11-03 02:51:40+00:00	Associated with 公共放送
2021-05-30 02:38:56+00:00	Associated with NHKテレビ