
Superman would have taken his uniform
to a Kandorian dry-cleaner...
The Big Bang Theory Season 2, Episode 11

Plus Superman and Godzilla.
The Big Bang Theory Season 1, Episode 5

is out flying,
Superman has to fly after him
The Big Bang Theory Season 12, Episode 2

Superman doesn't sweat on Earth.
The Big Bang Theory Season 2, Episode 11

...Superman cleans his uniform
by flying into Earth's yellow sun...
The Big Bang Theory Season 2, Episode 11