Having recently bought a new Panasonic TX28PL10 I have noticed its tuner seems to be weaker than the old Phillips set it replaced and as such some my terrestrial channels are very weak (I won't be investing in cable/Sky etc. for at least a couple of years) infact only BBC2 is at present acceptable. I would like to know if signal amplifiers are effective and if so could any of you recommend particular models. I have seen some for about £13 in Asda but I am reticent to buy these or more expensive ones if they do not work. Many thanks.