It is really a nice tv,But certain stations i have 2 of them like for instance i have chanel 13 13.1 13.2 what is that all about. On my old tv i just had plan old 13.

Answer:
Ask her!!! silly :D
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I got mine FREE too because it had a red line all the way down the left side. The person that gave it to me was a gamer. Once I hooked it to cable and fine tuned it as per the instructions in the book it works excellent. He thought it was going to cost a lot to repair it because it was just off warranty so he bought a new 48 inch. Some people just have too much disposable income.

I'm very happy with it.

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that's a digital chanel… it will be superior quality, you can auto program either the 13 or the 13.1 out if you'd like… usualy the _.1 is the superior option to watch, much better looking
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Depending on make and model, you might have the option of HD or regular format. no matter what, you have a really nice friend.
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Try googling for the manual info.
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it picks up lots of signals and wants to be smart but fully identifying it perfectly
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ask the girl you stole it from