It says the problem "appears to affect only some receivers", confirming that they "are working with manufacturers to identify the cause."
The BBC says it will report back when more is known.
There have been sporadic reports over the past six months of viewers with problems viewing the BBC HD channels, especially those broadcast on commercial broadcast capacity (BBC Four HD, BBC News HD and CBeebies HD), despite good signal strength.
a516digital has seen evidence of recent problems on BBC News HD in the Midlands using a 2013 Samsung model, where the news ticker will judder during static images, such as during the segment of The Papers when an otherwise still image of tomorrow's front pages is shown on screen or during static football results captions. Other reports come from owners of Toshiba TVs, and there have also been issues reported in recent months affecting some HD channels broadcast from the main Winter Hill transmitter in Lancashire in what appeared to be separate issue.
- Had trouble with BBC HD services on Freeview? If you have an Android device and/or a Gmail, G+, YouTube account, you can comment below. Alternatively, tweet @a516digital or visit facebook.com/a516digital