Migration towards IP has proceeded at different rates across the video lifecycle, having occurred first in production/post-production in the combination with Ethernet, away from traditional SDI. For distribution, it has come in as a hybrid with few traditional broadcasters or operators prepared to trust internet delivery for all their services and content. We have to distinguish carefully between the platform and the protocol here, remembering that the industry has been set on migration for the latter some years but until recently with many determined to hold on to their traditional distribution platforms. Even now bodies representing broadcasters, notably the EBU (European Broadcasting Union), remain set on defending terrestrial spectrum against mobile intrusion, despite that having been occurring now for over…