(30-05-2022, 10:53 PM)wonkey_monkey Wrote: SD broadcasts (who knows, maybe HD ones too, but I don't think any broadcasters use it if there is such a thing) include a flag to tell the receiver whether to display the picture as 16:9 or 4:3 (the number of pixels remains the same in both cases - 720x576).
Virgin still have it on their V6 box with the older Tivo software (and do change screen resolution as well if desired). Their newer software (360) removes both of these I understand (I've kept the Tivo software).
One other thing to note is that many laptops, especially at the higher end, have moved to a 16:10 ratio.