The "Happy Days" icon, 73, was a big winner at the September ceremony, picking up the first award of the night for Supporting Actor in a Comedy Series trophy for his role as acting coach Gene Cousineau in "Barry", but admits now he took too long to get to the microphone.
"I said to them, 'Your second season was amazing!' and then I realised I had to make a speech and I turned around and there were 37 seconds left. I had used up all my time telling them how much I enjoyed watching "The Crown"!".
The beloved veteran, who was a first-time winner, received a standing ovation as he hit the stage, and joked he wrote his acceptance speech "43 years ago".
And now the trophy is proudly displayed at home.
"It's on the dining room table and when you walk in you can't miss it," he adds. "When people say they use their Emmy as a doorstop for the bathroom I think they're full of s**t. No pun intended!".