I can't get cable TV to work. It shows weak or no signal. OTher TVs in the house work, so it's not the cable. I can use the DVD and the gane systems, but not the regular TV, an ideas? Bought new 37" Samsung and get weak/no signal for all HD channels. Other HD TV receives excellent reception. Spent all day Sunday redoing cables, connections and eliminating splitters. Even bought amplifier to strengthen signal. All efforts netted same result: one TV very good, Samsung zero. Geek squad to come in two days to check out. This appears to be similar to a modem problem I had a few years ago with a new computer. Jumped through numerous tech support hoops for a week or two before exchanging the computer for a new one that worked right out of the box.
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