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Thursday 7 April 2011 9:38AM
Lutterworth
my ariel is on the roof.it is about 1 1/2 yrs old.we have always had a perfect picture.the ariel is one of those with the yellow parts on it.it has about eleven or twelve prongs on it split between two bars.a yellow plate on top and yellow plate on bottom.we have had very good reception until about a month ago.the picture keeps freezing and then disapears.i cannot get any itv channels and a lot of the time no bbc.i have looked at the diagnostics on my tv and the signal strenghth on most chanels fluctuates between 0 and 60%.and then comes in at 100% sometimes .any ideas