these are the fakes, as I came across them:
San Diego 1977:
it has always been Seattle 1977 when I listened to it.
Glasgow 31-05-1977:
it was Glasgow 30-05-1977
Sapporo 05-05-1979:
usually 06-05-1979 (Freddie says something like 'this is the last concert of this tour')
look out for the setlist
Queen Live in Japan 1985 - Highlights:
Wembley 1986
Live At Wembley 1986:
Something's wrong with We Are The Champions, I have 3 (!) versions of it from only 2 different dates.