Aren't the BBC under some remit
by the government to get everyone onto digital TV so they can switch off the old signals? If so they have to promote digital TV in order to get people to want to watch it
(
butchbint,
Wed 28 Jan 2004, 15:28,
archived)
Also
digital transmission uses loads less power so it's cheaper for broadcasters.
(
Bingowings 2011 Businessman of the Year (Watford Branch),
Wed 28 Jan 2004, 15:35,
archived)