How do I get the autoscan to save during initial setup?

The normal method is to do a full auto scan and once it's at 100% store or save the scanned list?if you try to do it manually you will take ages because some channels the polarity switches and parameters for the horizontal and vertical parts of the dish change frequency.
so make sure the cable is connected properly into tv or smart box and rescan.once it's reached 100% look for the save or store button on screen.the hd channels should be automatically put within the saved list and usually colour coded in the menu.when selecting channels.

Hello
Do connection to the antena if you wants to set the TV auto tuned.
During this initial setup, you can perform the following:

1 Select the language for the on-screen display text.
2 Select HOME or Retail mode. [Here you have to select "Home" mode if the set displays "Retail"

3 Connect cable or antenna, then select OK to run Auto
Program

• If you have cable and antenna available, please connect cable first.

• IMPORTANT: Auto Program is only effective when cable or

antenna is connected. If you cancel Auto Program before completion some channels may not be
available.

4 Auto Program will scan for available channels from the signal source directly connected to

the TV's CABLE/ANTENNA input and may take sometime to complete the process. Follow
the help text provided on the screen to run Auto Program.
OK.

Be sure to complete the INITIAL SETUP to use this service.
If you have an user manual you may check it out for help to complete the INITIAL SETUP. Or else, you can have the correct page of INITIAL SETUP here:
http://www.retrevo.com/pdf/23566bh638/21/Setting+Up+the+Channel+List+–+Initial+Setup#q=Sony+KDL-40W4100
This link refers you to the page 16 of the user manual of your model. Please check page 17 also to complete the INITIAL SETUP. To go to this link, just copy-paste it in your address bar.

My set-top box has an 'autoscan' function in the channel menu under setup. Try that to see if it will be able to find the missing channels. Here, some time after the initial changeover to digital, they changed some of the channels, and a new scan was necessary to get all again.

My set top box has setup menu, channels, autoscan to scan for channels. They changed some of the channels here after the original switch to digital, and a fresh autoscan was needed to again find the channels that moved. See if your box has autoscan for channels, and do it.

get it to the local customer care
or there might be a problem with the signal reception
ask the service providers

How to connect a motorola DCH3416 to a computer?

Make sure the cable is on when you autoscan. If the autoscan doesn't see it,manually inputing won't get you there. Make sure you have the correct band selected when you autoscan.