前スレ
NHK BS4K・BS8K 5 https://nhk2.5ch.net/test/read.cgi/livebs/1544482761/
NHK BS4K･BS8K たぶん6 https://nhk2.5ch.net/test/read.cgi/livebs/1545016547/
NHK BS4K･BS8K たぶん7 http://nhk2.5ch.net/test/read.cgi/livebs/1545093778/