Again I took time to confirm some footage from Tokyo 1979. In clip of Death On Two Legs from ANATO 30th anniversary there are small bits of footage from Tokyo gig on April 25, 1979. As said on Bob's website these bits seem to be from Keep Yourself Alive and Teo Torriatte, but when I closely watched to these two songs from Tokyo I haven't found these bits in them.
So I want to say that these bits are really from Death On Two Legs from Tokyo 1979. Just look at Freddie: in Hammy 1979 he also gets his finger to his head during DOTL like in one Tokyo bit and in another bit he sings aggressively song like he ever did it in DOTL.
I also compared these bits to the audience recording and they seem to match!
"I really feel like being evil tonight."