Hi, I'm Nathan.Sorry to hear that you're having trouble, but I'll do my best to help you. Please give me a few moments to review your details here.
The tv itself is the issue here. This is a very old (2004) model, and it lacks an atsc (digital) tuner. It is only capable of picking up analog stations, it is not going to detect or tune in any of the digital channels, which are all that have been broadcast since 2009.
What you can do however is hook up an external tuner box to the tv and use it to pull in those channels: http://amzn.to/2i0t1c5
If you have any other questions, just let me know. Otherwise, please take a moment to rate my service as this is the only way I am credited for my time. Hopefully I have earned 5 Stars but if not please let me know what I can do to ensure you are satisfied. I also invite you to contact me directly with any future support needs at http://bit.ly/1QwLxGh and ask for Nathan.
Thank you, ***** ***** a nice day,Nathan