After change of channels by my TV cable provider I did a complete automatic channel scan as suggested. All channels are there however some CHANNEL NUMBERS are missing. In the channel list I get numbers 1 thru 8, number 9,10 are missing etc. So i am unable to assign a station to channel number 8 as before. Change channel numbers is also not possible, as there is no channel number 8 to use. Scanning the entire channel list show the missing channel numbers at the end of the list as ANALOG channels, even though I scanned only for digital. How do I get my channel numbering back?
SOURCE: Digital channel signal blue screen only
Press the "INPUT" button and make sure "TV" is highlighted.
SOURCE: Trying to scan channels into my vizio, but no
I called my satellite provider. Problem solved!
SOURCE: Digital Visio 42" LCD TV stopped receiving digital TV
Check all your connections in the back, if they're all good replace the main board in the tv.
SOURCE: Dynex 32" 720 LCD HDTV - no channel listing after run auto scan?
Excuse me but the other answers are written by people who have not actually confronted the problem and are just guessing. They are all wrong. Here's the answer:
If your TV is expecting a TV input, it will keep searching for at least one TV channel on cable or antenna. If you only have a DVD player plugged in, for example, or if your cable is hooked up wrong, so there's no video signal on it, the TV will keep searching forever. (This is an unforgivable design flaw, by the way. But then, it was a cheap TV, wasn't it?)
To solve the problem, look at your remote control. You will find input buttons. Mine are small, along the top, right under the "power" button. Try pressing "video" for example, instead of TV. That stops the TV from hunting for TV channels.
Have a merry Christmas. Enjoy your new TV. Watch it in moderation and eat fruit and vegetables every day.
SOURCE: I have a Vizio VW42LF TV that is 2 yrs old.
The TV processor could have some garbage in it do to a small power surge and if you leave your TV unplug for 40MIN., then that will reset it bad to normal, and if tuner still looks snowy and not getting channels, then the tuner, or main TV module needs replaced.
Programming channels automatically
Your TV can automatically detect all active channels and store them in
its memory. After the TV has stored the channels in its memory automatically,
you can add or erase channels manually.
To add channels automatically:
1. Press MENU, then press "left arrow" or "right arrow" button to display the SETUP menu.
2. Press "Up arrow"or "down arrow" until the TV/CABLE
selection is highlighted.
3. Press "left arrow" or "right arrow" button to highlight either
TV or CABLE, depending on which you use.
If you use an antenna, choose TV.
If you use cable, choose CABLE.
4. Press "down arrow" button until the CH PROGRAM selection is highlighted.
5. Press "left arrow" or "right arrow" button to start channel programming. The TV will automatically
cycle through all the TV or Cable channels (depending on which you
selected), and store all active channels in the channel memory.
While the TV is cycling through the channels, the message
"PROGRAMMING NOW-PLEASE WAIT" appears.
6. When channel programming is complete, the message "COMPLETED"
appears.
7. Press CH UP or DOWN button to view the programmed channels.
OK.
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