One of the TVs in my house was suffering from poor reception (fewer channels, breaking pic & sound) following the switchover to digital. I managed to get the full list of available channels by adding a booster to the 4-way splitter in the loft for this TV. But then I noticed that the cheapo-plastic co-axial plugs at both ends were loose / splitting. These were fairly quick & easy to fix (no instructions but can be googled) and gave me an instant improvement. I was on the verge of calling in a professional, so delighted these made such an improvement.