That's where the Restoration Team comes in, cleaning up the prints and processing the audio tracks. Though they have their detractors who believe the Team often stray from their Mission Statement to restore the original footage and resist temptation to improve it, in my view they do good work.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'