Poor signal only on certain channels

Hi, new to the forum. I've been a BTBB customer for several years and BT vision customer for around 2 years but only now have I suffered a problem with the actual service itself.
Over the past week or two, I've had consistent problems seemingly with only the BBC channels while viewing via BT vision. It would suggest that the signal appears to be very very poor, causing 'blocking' all over the image alongside short high-pitched squealing noises and, at times, the image & sound completely disappear. Completely unwatchable. If I change to a non-BBC channel though, the image & sound are near-perfect as I'd expect. Also, if I view those BBC channels through my TV's own digital receiver, they too are near-perfect.
On rare occasions, those BBC channels can be watchable before running into the same problem shortly afterwards.
Any time I've tested my line speed, the results vary from around 4500Kb/s to around 5900Kb/s. Immediately after realising the problem persisted this evening, I tested the speed again, and the result was 5743Kb/s. Apparently, there haven't been any engineering works in my area.
Another problem that only seems to have surfaced at the same time is that a few of my recordings have disappeared, although they had the 'keep until I delete' option selected.
Can anyone help? Much appreciated.
Cheers

Gorgatron wrote:
Hi, new to the forum. I've been a BTBB customer for several years and BT vision customer for around 2 years but only now have I suffered a problem with the actual service itself.
Over the past week or two, I've had consistent problems seemingly with only the BBC channels while viewing via BT vision. It would suggest that the signal appears to be very very poor, causing 'blocking' all over the image alongside short high-pitched squealing noises and, at times, the image & sound completely disappear. Completely unwatchable. If I change to a non-BBC channel though, the image & sound are near-perfect as I'd expect. Also, if I view those BBC channels through my TV's own digital receiver, they too are near-perfect.
On rare occasions, those BBC channels can be watchable before running into the same problem shortly afterwards.
Any time I've tested my line speed, the results vary from around 4500Kb/s to around 5900Kb/s. Immediately after realising the problem persisted this evening, I tested the speed again, and the result was 5743Kb/s. Apparently, there haven't been any engineering works in my area.
Another problem that only seems to have surfaced at the same time is that a few of my recordings have disappeared, although they had the 'keep until I delete' option selected.
Can anyone help? Much appreciated.
Cheers
Hi
Most of the BBC channels are broadcast on one multiplex, so if you're finding problems with only the BBC channels it could be a signal strength issue. The vision box has twin tuners so if there's a weak signal it can show up on the vision box quicker than on the single tuner on a TV.
Do you know if there have been any engineering works on your transmitter? There's normally news of transmitter works on this web-site www.ukfree.tv

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