New HD box - poor quality on some recordings

Bert Coules

Well-known Member
My new Amstrad HD box (recently installed by Sky as a replacement for a faulty Thompson) is working beautifully except that some SD recordings are displaying poor picture quality. This takes the form of inconsistency (swirling, blocking) in areas of solid colour, especially when they are static on screen for longer than a second or so.

This doesn't happen on HD recordings and isn't apparent when watching direct transmissions. Nor does it seem to occur on all SD recordings, just some. I haven't noticed yet if it's only particular channels which are affected. Signal strength and quality on both inputs is consistently high.

Is this a standard symptom of a known fault? Many thanks for any thoughts.

Last edited:

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