Why didn't you say so before?
4 seconds sound clip from the Yogi's First Christmas (1980) movie soundboard.
You can hear this line at 00:43:12 in the Blu-ray version of the movie.
Quote context
[...]
- I'm sorry. It's only December. I need my beauty sleep.
- Well, he might lose his job. He's the leader of the singers.
- Why didn't you say so before?
- Deck the halls with boughs of holly, fa-la-la-la-la la-la la-la. 'Tis the season to be jolly...
- Fa-la-la-la-la. Bah! I hate those goody-goody carols.
- I'll fix that yowling or my name isn't Herman the Hermit.
[...]