Saved Channels Every time I turn my TV off the programmed channels are reset and need to be re-programmed. This is the same problem i have had with the favorite channels option for some time now.

ManualsLib has the manual for the Sylvania LC321SS9 here: https://www.manualslib.com/manual/500307/Sylvania-Lc321ss9.html . See https://www.manualslib.com/manual/500307/Sylvania-Lc321ss9.html?page=18#manual for the directions for manual scanning of channels. If the TV looses power before you turn the TV off with the power button, the scanned channels will not be saved.

I hope this helps.

Cindy Wells
(Note: some TVs will delete digital channels from the stored channels if the signal strength consistently is too low for the tuner to interpret.)

If you turn the TV off by any other means than using the TV's power button you will lose the saved channels.
I think that this only applies to the first turn off after the channel scan.
In notes at right.
Emerson LC195EM87 Owner Manual Auto Channel Scan Language Selection

Main system control memory IC fault. This is a very small IC; have 8 solder terminals, and can be located very near to the main system control-chroma IC. Check and replace it. Be sure to replace it with the same number printed on it; in all respect. Otherwise, it won't go. http://electronicshelponline.blogspot.com/ Before replacing it, try a reset to this set, and then check.
There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; check the site linked here.

Hello
To tune your Panasonic Plasma to on air TV channels do the following:

Connect the antenna connection to its antenna in at the back panel.

Automatically searches and adds available channels to the memory.

Select "ANT in"

Select Cable or Antenna Select "Auto"
Select a scanning mode

Auto channel setup
Select "Auto program"
Select "ANT in"
Select "Auto"
Select scanning mode (ALL channels/Analog only/Digital only

Start scanning the channels

Available channels (analog/digital) are automatically set.

All channels: Scans digital and analog channels

Analog only: Scans Analog channels only
Digital only: Scans Digital channels only
Confirm registered channels

If OK is not pressed after selecting "Apply", the channels will not be saved.

The channel will be saved when no operation is performed for 60 seconds and

the "Manual program" menu will also exit automatically.
If you perform scanning more than twice, previously saved channels are erased.

About broadcasting systems

Analog (NTSC): Conventional broadcasting

Digital (ATSC): New programming that allows you to view more channels
featuring high-quality video and sound
[Use "UP ' DOWN ' RIGHT ' LEFT] AND 'OK"] keys to selcet and proceed.

You can only rotate your antenna to get the maximum number of stations and have one list of stations.

What's the model on the TV? Can try to look for the manual online. Might be worth a shot to try a capacitive discharge (unplug power, try to turn tv on a couple of times while power is unplugged, plug back in and try again). That may reset it.

Can also try going in the menus and rescanning for channels.

Setting Up the TV
After you have finished connecting your TV, you can use Auto Program to set up your
channels. During Auto Program, the TV will automatically search for available channels and
program receivable channels.
(Make sure CABLE is connected on coaxial and you are not using any other connections such as cable box, hdtv or satellite antenna)

1 Press to turn on the TV. The Initial Setup screen appears.
2 Press on the remote control or on the TV front panel to start Auto Program, or press
to exit.
To perform Auto Program again
1 Press .
2 Press g to highlight Channel Menu.
3 Press f to highlight Cable. Press to select.
4 Press F or f to highlight On or Off according to how you connected your TV. Press to
select.
5 Press f to highlight Auto Program. Press to search for channels.
6 After Auto Program finishes, press to exit.
To reset the TV to factory settings
1 Turn the TV on.
2 Hold down on the remote control.
3 Press and release the POWER button on the TV front panel. The TV will turn itself off,
then back on.
4 Release .
✍ When you start Auto Program wait until it is finished; otherwise it will skip over channels that are
available. Perform Auto Program again to program receivable channels.
✍ The Initial Setup screen appears each time you turn on the TV until you perform Auto Program.
Initial Setup
Auto Program [CH+]
[CH–]
First please connect
cable/antenna
Exit

Vizio representative suggested connecting antenna directly to TV and not through the VCR. In doing this, we lose the ability to record on the VCR but we record elsewhere and watch downstairs. The problem is solved on losing channels. I must add that we watch and record on a Sharp digital TV upstairs and do not lose channels. I don't know why the VCR had this effect on this Vizio TV.

THESE SETS ARE BAD ABOUT THE KEYS ON THE KEYBOARD STICKING--I POSTED MAYBE A CURE FOR THIS ...READ IT TUNICA

If you do not have a replacement remote and their is no menu button on the tv then you will have to do a hard reset.

To do this you will have to unplug your tv and all connecting components until such time that the tv is reset. You will know it is reset when the tv asks you when you turn it on to run a channel program.

Good luck.

CH