Radio commentary no longer matches the picture in front of you

Fans who mute the television for the local commentator now sit half a minute out of step with their own screen.

There used to be a small ritual. Sound down on the television, radio on, listen to the commentator who actually cares which way this goes. It worked because the two signals arrived close enough together that a shout landed on the same picture you were watching.

That has quietly stopped being true. Digital radio carries its own encoding delay, and internet audio carries a larger one, while the video path has grown delays of its own that vary by platform. The result is a moving offset. On one setup the commentary is ahead, so you are told about a save you have not seen. On another it lags, so a roar arrives at an empty pitch. Neither is usable, and the fan blames the radio station, which is generally the least guilty party in the chain.

Broadcasters have known about this for years and their answer, where they have one, is a manual sync slider in an app. I find that a strange piece of design. It puts a timing engineering problem in front of a person who has just sat down with a drink, and it needs redoing whenever the network hiccups. Worse, the slider usually only delays audio, so if the commentary is behind the picture there is nothing to be done.

The technically correct fix exists and is boring. Watermark the video with an inaudible or invisible timing signal, let the audio app listen to the actual screen in the room, and align automatically. Second screen advertising products already do exactly this to work out what you are watching. The capability is sitting there being used to sell you a car.

Why it does not happen is commercial. A broadcaster who has paid for both audio and video rights has no interest in making a rival's commentary easy to pair with its own pictures, and a rights package that separates the two is deliberately shaped so that the bundled product is the convenient one. The friction is not an accident.

I think supporters should say so plainly rather than fiddling with sliders. The mismatch is a choice somebody made, and it is being blamed on physics.