Dude, they did not become "commercialized" after TNT. What are you on about? Let There Be Rock was the rawest album they EVER recorded. They became a little more "glossed" over with Highway to Hell (1979), but EVERYTHING before that was mean, in your face and RAW.
You obviously didn't read what I said ?
"One of the best ACDC albums" before becoming to commercialized ,which basically is everything before Back in Black.
I never said TnT was the last.
Back in Black was there big one on the world stage ( and IMO There last great album) , after this they have the odd decent track here and there .
How could you even think they were "to commercialized" from my comment on any of there pre back and black days

Highway, Let there be rock and TnT are all pre this , Chuck dirty deeds and If you want blood into that lot to , two more good quality "RAW" rock and roll albums.