Now, look.Tonight is an important night to me. And I don't want you to ruin it.
5 seconds sound clip from The Honeymooners (1955) - Opportunity Knocks, But sitcom.
You can hear this line at 00:04:34.570 in the Blu-ray version of the TV Series.
Quote context
[...]
- You don't mind if we call it off tonight, do you?
- Yeah. I'll be expecting you at 9:00.1149 Park Avenue. See you later.
- Now, look.Tonight is an important night to me. And I don't want you to ruin it.
- You know, this is how you get places. Socializing with the higher-ups.
- Don't I know it? Don't I know it? Boy, let me tell you.
- If it wasn't for a game of golf, I wouldn't be where I am today.
[...]