Viewers still watching the BBC in standard definition on satellite will see additional prompts reminding them to take action before the signal is turned off.
It’s part of the next phase of viewer signposting in the run-up to the closure of BBC standard definition services on Sky and Freesat.
The first phase involved replacing regional versions of BBC One with a single national version. In place of regional programmes, viewers already see a red screen advising them to upgrade.
Most Sky and Freesat viewers can now see their local BBC One HD on channel 101, alongside the rest of the BBC channels in HD and won’t be affected by the SD switch-off.
For the small number of SD-only viewers, the next phase of signposting involves periodic messaging popping up on BBC One during the rest of the day. The message reminds viewers that only HD-enabled satellite equipment will be able to receive the BBC’s services.
Freesat viewers are directed to hdsatelliteupgrade.co.uk to find out more. Sky viewers are asked to contact Sky, who are offering equipment upgrades.
The additional messaging was last seen immediately after The One Show on Monday evening, broadcast over the trailers that normally fill the gap until the next programme.
Confusingly, the messaging will also be seen by Sky+HD and Sky Q viewers if they watch or record BBC One SD on channel 801. They can simply switch to their local BBC One HD service on channel 101 to get rid of the message.
Freeview and Virgin Media viewers are not affected.
UPDATE (27th June, 7pm): since this article was published, the BBC has confirmed that it started inserting the special message on 19th June.
PICTURED: BBC One sting. COPYRIGHT: BBC.