One of the biggest issues that we ran into when we got an HDTV was that the signal coming in was weak. This was due to a frayed cable end outside at the box, but we never noticed on the SDTV since SDTV isn’t as effected by poor signal and isn’t as temperament.
However, for some, upgrading to HDTVs requires a boost in their signal to get all the content to the right place. It seems that lower channels are a good indication of if your signal is making it if you get snow on them or have some issues with it. This is obviously if you don’t know how to pull up your maintenance screen on your cable box to look at the actual signal strength.
In any case, this product is worth your money if you’re in dire need of a signal boost. I recommend getting one if you’re HDTV buff and there’s no other way to get around getting a better picture due to how it was wired or what not. The Motorola Cable Signal Booster is definitely worthwhile. Just remember, though. Amplifiers do raise your noise floor. So don’t get them until you’re sure that there’s no other way to get around the issue including better wiring from wall to TV and so on.