What is run auto channel search - Insignia NS-L32Q-10A 32 in. HD-Ready LCD TV

stop pushing buttons your not sure of.
To perform a channel scan using the coaxial input:

Press the INPUT button on your remote to view your current input source. ...
If the TV input is not selected, press INPUT until the TV input mode is selected.
Open the on-screen menu and select TV or Tuner option. ...
Highlight Tuner Mode and select the correct option:

Auto channel search is how your tv finds channels that are available. Under settings in the menu should be initial set up. There you will find channel search.

Hi
Before tuning the set to auto tune mode, make sure the antenna or cable, whatever may, connected to its appropriate sockets at the back of the set firmly. To make it autotune:

As new services are broadcast, it will be necessary to

re-tune the television in order to view them.

Auto Tuning will completely re-tune the television

and can be used to update the channel list. It is

recommended that Auto Tuning is run periodically to
ensure that all new services are added. All current

channels and settings, i.e. locked channels, will be
lost.

[1] Select the SETUP from the main menu by using

Up or Down buttons. Press OK and Setup menu
will be displayed.

[2] Select the Installation from the Setup menu

by using Up or Down buttons. Press OK and
Installation menu will be displayed.

]3] Select Automatic Channel Scan from the Installation

menu by using Up or Down buttons and press OK.

A screen will appear warning that previous digital

programmes and settings will be deleted. Select Yes
and press OK to continue with the Auto tuning.

The television will start to search for all available

stations.You must allow the television to complete

the search. When the search is complete the Auto

tuning screen will display the total number of
services found.

* After search is completed for digital channels, a

message asking whether to search for analogue
channels appears on the screen

** Press the OK button to search for analogue

channels. The following menu appears on the screen
for analogue channel search
OK.

you have to be on the Cable/Antenna Input. Then you can access the menu option to auto search for you channels again.

Same thing with my vizio vx37l tv. Did you fix the problem bpakja? If so please let me know how.

Tested and verified solution:

1. Set Tuner Mode to "antenna".
2. Run a channel scan. Should get zero channels found.
3. Set Tuner Mode to "cable".
4. Run another channel scan.
5. Celebrate!

 you must run "auto program search"/"auto store" again and let the TV find the programs. then put them in order and store. 
If you feel some channels are missing, try to find them manually. The auto store function sometimes skips programmes with less tolerant range, even if they are watchable in a fairly good quality. And search slowly and pay attention and go back if you feel you just skipped something. Good luck and lots of patience!
A new aerial sometimes might mean loss of some channels.

I hope it was helpful

Auto search button might be stuck/ jamed in cabinet. release it and Prog. buttons will be work.