Flash animation for broadcast TV?

I have been asked in the past to create a larger version of a Flash animation to play on a TV monitor in a hair salon, and upsized my vector graphics to 1920x1280 px. But that animation did not have audio. I have exported Flash animations with audio as video files and converted to FLV for streaming.

But what about using Flash to make an animation that could be a 15 - 30 second TV commercial? Any tips?