Can't get anything over antenna

If you have a cable box the channels are selected via the cable box remote and the TV is set to an HDMI video input. The specific input is identified where the HDMI cable connects from the box.

Use the video input remote to select the HDMI for the cable box.

Scanning is for identifing the over the air stations that use the coax input noted as antenna (ANT IN) on the back of the set.

Hope this helps?

Hi Patrick,

You must have a UHF / VHF antenna connected to the antenna input of the TV to scan for digital channels. Most new TV's have a threaded, round 75 ohm coax cable connection for this - but yours might even have connection consisting of 2 small screws to connect a 300 ohm twin lead antenna cable instead. Use which ever yours has.

If you are using this input for the input of a cable TV "set top box" (STB), satellite STB, or similar, you will likely only find a single analog channel (Ch3 or Ch4) after a scan as the scan will only find the output of the STB - which is usually on Ch3 or Ch4 - and not be able to scan the STB channels.

Additionally, the antenna input of the TV will only provide a standard definition picture if connected via coax cable from the STB. It will only provide a high definition picture if connected to a UHF / VHF antenna and a broadcaster is close enough for its signal to be received by the antenna. The way to obtain the best possible picture (high definition) when using an STB for tuning channels is to use an HDMI cable between the STB and TV. An HDMI cable will provide the very best picture and audio signals from the STB to the TV; all over a single cable and is the recommended practice.

I hope this helps!

If you are receiving a "No Signal" error message, verify that:

1. All of the cables physically connected to the TV and the input device are secure.
2. The input device is turned on.

Your TV needs to scan for channels before it can show programming from an antenna, from cable TV when the cable comes directly from the wall (no cable box), or from a cable or satellite box connected to the TV with a coaxial (RF) cable. Do not scan for channels if you have a cable or satellite box connected using AV (Composite), Component, or HDMI cables. The box selects the channel, not the tuner inside your television. If you are not using the "TV" input, press the INPUT button on your remote until the correct input mode is selected.
To perform a channel scan using the coaxial input:

1. Press the INPUT button on your remote to view your current input source. The TV (coaxial cable) input must be selected. This may appear as "TV," "ANT," or the channel and call letters of a station.
2. If the TV input is not selected, press INPUT until the TV input mode is selected.
3. Open the on-screen menu and select TV or Tuner option. (This varies by model.)
4. Highlight Tuner Mode and select the correct option:
   • Antenna-over-the air signals from an antenna
   • Cable-direct from the wall cable TV, or a cable or satellite box connected to the TV with coaxial cable
5. Select Auto Search or Auto Channel Scan. (This varies by model.)
6. When the search reaches 100% complete, exit to the menu.
7. Check the available channels:
   • Antenna or direct-from-wall cable-Press the Channel Up and Channel Down buttons on your VIZIO TV remote to view the available channels.
   • Cable or satellite box- Will return only one channel. Use the cable or satellite remote's Channel Up and Channel Down buttons.

If this does not resolve the issue, power cycle the TV and then re-run the channel scan:

1. Turn off the TV.
2. Unplug the TV from the electrical outlet.
3. While the TV is unplugged from the wall, press and hold the Power button on the TV for 30 seconds.
4. Release the power button.
5. Plug the TV back into the electrical outlet.
6. Turn on the TV.

Note: There is also an option to reset the TV to the factory default settings. This option is in either the SETUP or SYSTEM section of the on-screen menu. The option may be "Reset all settings", "System Reset," or "Reset & Admin." Consult your TV's user manual for the location and steps for resetting your model.

1. Remove the coaxial cable from the DTV/TV connector on the back of your television and perform a channel scan to clear the existing channels. See the procedure above. This should not find any channels.
2. Re-attach the coaxial cable to the DTV/TV connector and perform a new channel scan.

This video shows troubleshooting steps to use when a "No signal" message appears.

The first question is, how do you connect the Dish Sat to the TV?
If by coax cable, then let the TV scan and find the output channel of the receiver (ie. Channel 3). If you are using HDMI or other Input Input ports, you should be able to skip the auto scan and just choose the corrent input port. If all else fails, hook an antenna or coax cable to the TV and allow Auto Scan to complete its processes. You should then be back normal and can then select the input port.

Do a channel search and select digital AND analog channels

Connect air antenna to RF(coax) input of tv. Go to the menu and look for channel setup.Select antenna and auto scan. When done scanning you should have whatever stations you are able to pickup. Connect Sat reciever to one of the other input on the tv. Then go to INPUT or SOURCE on remote and select tv for local and what ever input you sat box is connected to for dish.

Antenna?? If you connected an antenna to the TV, you can only picking up radio waves. In the TV's menu options you should have a connection selection to choose from "Cable" or "Air". With an antenna, Air needs to be selected. Go through your "Input" selector from tv remote and select "TV" which is always the first selection. If this does not help, let us know exactly what is connected to the tv whether it be a COAX cable alone, a coax connected to an antenna, or if you have rabbit ears connected.

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.

On the Notification screen with Cable highlighted I found that left clicking on Cable gave a drop down menu with TV on it for selection. The manual says that while Cable is highlighted, use the up or down arrows to get TV to be an option and then select it and Yes and enter. Hope this helps. I have other problems with my monitor on Line Out, the screen oftens turns blue indicating low or no video using Line 1 or 2 inputs.