Yeah, it's true they do some touch ups for official releases but if you do like Thomas Quinn says and download a Queen concert from this site,
you will hear for yourself that they were a great live band without the touch ups or dubbing.
As a matter of fact there are quite a few great concerts for downloading on this site.
"If we look half as good to you as you do to me, we must look good" Brian May
"No, Innuendo is not an Italian suppository, it's a Queen album."