You can trust the MainStream Media.
Yup.
The source said the rehearsals were taken very seriously by BBC management and staff. “They are all done in real time and the presenters change into something more sombre, just as they would do if it was the real thing,” the source said.
http://www.theguardian.com/uk-news/2015 ... news-alert
PS Could someone please explain to me what really happened? No Conspiracy Theories, please!