Broadcasting isn’t a thing, or even a name for an industry. It is simply a way of delivering bits. It’s a one-to-many way of delivering information, and it involves simultaneity. The many receive the information at the same time. Information flows from the one to the many.

The BBC has been transmitting digital radio since 1995. But you won’t have heard it, because receivers aren’t yet on sale. Digital television is a different story. Digital TV has been onstream via satellite and terrestrially since the autumn of 1998.