One point to emerge clearly from the recent annual IBC 2019 broadcasting convention in Amsterdam was that the stampede towards IP from traditional media is gathering speed. At first sight this might suggest that digital terrestrial transmission is also dying, but this is only superficially true because the underlying technologies enabling multicast and broadcast will live on as overlays on top of the cellular infrastructure. We have to distinguish carefully between the platform and the protocol here, remembering that the broadcasting industry has been set on migration over the latter some years but until recently many operators have been determined to hold on to their traditional distribution platforms. Even now bodies representing broadcasters, notably the EBU (European Broadcasting Union), remain…