Oscar speeches have certainly changed over the years. While nowadays viewers expect multi-minute, rambling thank yous to every major player involved in the winner's film, back in the day, you just made an off-color joke and went on your way.
After earning a statue for playing a mute, Wyman said, "I accept this very gratefully for keeping my mouth shut once. I think I'll do it again." PC? No, but we're pretty sure political correctness wasn't invented until the 1960s, so she gets a pass.