Ah, but I already covered this...
The only 'thing' to really change Superman was 'The Man of Steel' mini-series done by John Byrne, roughly six months after "Crisis on Infinite Earths" maxi series...
a series where the 'Golden Age' Superman (the '50's' one) was wiped for existence (he only exists in 'Hypertime' now).
The '70's' Superman exists, mostly in 'Hypertime'.
'Lois and Clark' only changed the dynamics of Superman and Lois' relationship (note that they got married around the same time), but THAT IT...no villains, nor other scenarios appeared from the series, in the source material (the comics).
Likewise 'Smallville' has not changed the comic; 'Metropolis' is still on the East Coast, NOT KANSAS...
...and that's about the time it hit the fan...
Truisms I know:
1) Marvel is NOT better than DC (nor should EVERYTHING be ‘ULTIMITED’),
2) D20 is NOT the best gaming system out there (nor should EVERYTHING be ‘crammed’ into it),
3) And No matter how ‘THEY’ dress it up, Regardless of how ‘THEY’ title it, and even if ‘THEY’ say “BASED ON…”; “ENTERPRISE” IS NOT STAR TREK!!!
4) 'Reality' T.V. ain't 'Real'