Signal quality

#1
I have a digital aerial, amplifier and splitter feeding four tv sockets.

I use two. In one room I have a PVR9200 and in 2nd room I have a Fox T2 set top box.

All was working fine until a couple of days ago.

The Fox T2 is ok on most channels but on Sky News, 82, it shows no signal. The signal strength is about 80% but quality is 0%.

The PVR9200 is still fine, receiving all channels including Sky News.

So two tvs - same aerial but one shows Sky News one doesn't. Surely it can't be an aerial problem?

Any advice would be much appreciated.
 
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