I suspect the whole BBC Wales announcement was assembled and pre-recorded in advance, by some BBC Cardiff 'enthusiasts'. It would have required some over patching and rerouting of the analogue Tx chain. In other words, labour intensive, and not beancounter friendly. BBC Cardiff do have reputation for doing, 'anoraky' things. Didn't they go against the grain and remove the BBC Choice Wales DOG on their output ? Then there were the LOM and AtA idents.
It was certainly planned in advance, although only done on the day. It didn't require any over patching - the facility to split analogue,
DTT and DSat was built into the opt-out router, and indeed remains for the latter two. Certainly at some point last year there was an outage on DTT, and we were able to put an apology at the end of the programme on DTT, without affecting DSat.
The 'end of analogue' sequence was labour intensive in that it took two people a few hours to plan and put together IN THEIR OWN TIME, but TXing it was simply a matter of pressing the right buttons at the right time. The beancounters - and indeed the licence fee payers - had nothing to worry about
I should add that the the engineering staff at Wenvoe were fully aware of what was going to happen and when, and appreciated the efforts taken to properly mark the closure of the transmitter.
As far as I remember, BBC Choice Wales used a dog throughout - albeit that it had to move (known in the department as 'walking the dog') to accomodate the sport clock for rugby and football matches. The dog on 2W was, however, short-lived.
The Life on Mars idents were done simply because the original model was to hand and working, and looked a whole lot better than the CGI mock that network were using. We also had access to two announcers from the 70s/80s who happened to be in work at the time, enabling us to use them at no extra cost. In fact, the globe footage used for the end of analogue sequence was that shot for the LOM idents! As far as I now remember, the
ident used for Ashes to Ashes was the Wales branded version of the BBC One Audi Quatro ident.
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