Tv won't stay on any one channel for any length of

check weather some of your channel was deleted in the program. just add those channel so you can make auto scan programs.

Channels above 99 require the set to have a digital tuner built into them.

Hello
Check if any microswitches on its front panel ahs been strucked. Replace all the microswitches at the same time. it won't cost more.

Hello
Check whether any control buttons on the front panel of the TV is strucked or not. It is best to replace all microswitches of the front panel of your tv. You have to open your tV and detach the control panel printed circuit board, desolder out one microswitch among them for a sample, and go to buy a new one. Replace all the switches at the same time. It won't cost more. They are very cheap to buy. You can bought it from most of the electronic spare part selling shops at your town. OK.

Hi,

Please let me know the exact model no. of your TV to accurately diagnose where the fault came from. Also, please check what is the status of the LED at the front panel, does it has a steady, blinking light, if blinking, please count how many times it will flash. Some of the blinking LED denoting an error code.

Jdvillanueva

open tv menu

run scan on antenna

they should store then

Your T.V. is programmed to store the last input you've selected. You have to manually switch it back to your T.V. channel input after each time you switch it to HDMI or any other input even when you turn it off. The "Source" or "Input" button on your original T.V. remote will change this.

There should be channel buttons on the TV itself, try using those. Also, you may want to try changing the input from the Cable Box. 
I am curious as to why the remotes don't work. Also, how did it get onto channel one. Did you get the TV used?
Here is a link to the AV Science Forum. It seems other people have challenges with this TV as well.
http://www.avsforum.com/avs-vb/showthread.php?t=745952