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Re: Swtiching to Digital tv
If you are connected to Cable TV service you are probably already setup, but here are a few things to check for.
From the Menu, make sure the tuning band is set to Cable and not to Air or Antenna.
From the Menu perform an Auto Channel Search.
That should be all you need to do.
Now if you want the best High Definition picture, believe it or not you will need an Antenna, depending on your location you will be able to pick up OTA (over the air) channels in the purest form.
I can help you with this also, let me know.
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You need to look for the settings for the input type. It is usually cable or antenna (digital). Switch to antenna.
Then you need to look for 'auto find' channels, so it can scan to locate and set the channels in your area.
Your TV must have an internal digital TV tuner (ATSC) in order to get new digital broadcasts.
It sounds like you are hooking the cable to the wrong input (digital instead of analog) or you do not have an analog input. If you do not have an analog input you could run the cable through a VCR to convert the signal to a separate audio/video signal and send it to the TV via an auxillary input. Without the model number I can't give you much more help.
This television would benefit from an hdtv indoor outdoor amplified antenna not obstructed by trees, aluminum, bricks, and etc. Make sure the signal type is air and not cable and complete a channel scan during primetime tv hours after connecting to this antenna. Buy a large one that you can mount to the wall usually in a large flat box on the shelf in the store. Philips has one sold at Walmart.
If you have tried autoprogramming and have found nothing it may be a bad tuner. Is your VCR is hooked up via coax or into a video input? If it is hooked up via video and is working but the coax connection direct isnt it will be a bad TV tuner. Easiest cheapest fix is to use you VCR to change channels or get a Digital Cable Terminal from you cable provider and hook it into video or compnent.
Any TV hooked up to a cable or satellite box can only "see" one channel...the set-top box (STB) converts the channel you are watching to (usually) Ch. 3 or 4. With cable you can split the input if your TV has 2 RF inputs, with a dish that won't work.
That's why the TV stays on Ch 3 and the STB changes to whatever you want to watch.