Macmillan Cancer Support Christmas Fayre...
Quizzes & Puzzles5 mins ago
No best answer has yet been selected by thepheebster. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.Further to Andy's answer, you only tend to see the 'cue-dot' (as it's known) during live programmes these days - as due to their nature, the precise timings for the ad-breaks aren't known in advance. During pre-recorded programmes the network will be told in advance exactly when the ads will happen. This is unless there's an unexpected change to the schedule such as a newsflash or over-running sports event, in which case the cue-dot may appear during recorded shows. Generally it's smaller nowadays, so on some TVs it disappears off the edge of the screen so you can't see it - although it's definitely still used.