Signal dissapation makes it less likely. I dont' rmemeber the exact number off the top of my head, but by the time you are half a light year out, I worked it out once that you were getting tiny, tiny signals. As in double digit negative exponents of ten for eavery watt the signal started with. At that strength, you are really going to have be hunting for it. Assuming of course they can translate the protocal- they will get AM easily enough, but the video side of TV is less likely.
Unless it is an intensional signal, it isn't going to be heard. It's like shouting in a sawmill. <img src="/images/graemlins/smile.gif" alt="" />
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-IronRaven
When a man dare not speak without malice for fear of giving insult, that is when truth starts to die. Truth is the truest freedom.