* You might be thinking of a specific countdown show. There are many countdown shows on TV, such as "American Top 40," "The Billboard Hot 100," or "Countdown."
* You might be referring to a specific countdown segment within a TV show. Many shows have countdown segments for various purposes.
To get a more specific answer, please provide more context, such as:
* What network or channel was the show on?
* What was the general theme or topic of the countdown?
* What year did you see it?
With more information, I can help you find the show you're looking for and its duration.