How do I put my Insignia flat screen tv settings back to factory settings? My picture is too large for the screen and all 4 sides of picture are cut off

SOURCE: Picture too large

Normallly, if the picture size button on the remote for the television does not achieve the desired affect, then, a cable box or a satelite box is where the change needs to be made.
For example:
Some Motorola Cable receivers need to be set up in the menu to go to a wide screen or zoom mode when an analog signal is detected. There may be a format button on the remote.
Some Dish Network boxes have Size buttons on their remotes and also in their main menu.
It's difficult to determine the repair without knowing the types of the peripherals.
Hope this helps.

SOURCE: Insignia flat screen

I have the same problem with my insignia.

The screen was all "pixel-ated" .

Sometimes the picture would be clear and then it would go all fuzzy.

One day in frustration I kinda smacked it. Guess what? ... the picture cleared up.

Since then about once a week I kinda have to smack the right or left side jst to the left or right of the screen.

Good luck.

SOURCE: Picture is too big for screen

Go into the setup menu of the TV, and you'll find a category called DISPLAY or ZOOM. That's where you can change the aspect ratio so that it fits on the screen. You'll probably get a gray band on the top and bottom of the screen due to the re-sizing.

SOURCE: TV picture doesn't fit in screen no matter what the setting

Ok, so I think I have your solution :)

You're actually my first when it comes to this site, so hopefully this fixes your problem!

Step 1 - Turn off the cable box, but leave the TV on

Step 2 - On the front of the 8300HD, press the "guide" button and the "info" button at the same time

Step 3 - Choose "HD" for High Definition, or "SD" for standard definition. (Sounds like you're HD?)

Step 4 - Choose the aspect ratio 16:9

Step 5 - Choose "progressive scan" if it asks you.

Now press the "power" button on the box, does that fix it?

SOURCE: Insignia 27" lcd tv vertical colored lines across screen.

This television, appears to have had a failure in the mainboard. This is the board that controls the video functions and sound functions. The unit should be taken or sent in to a service center for testing and servicing. The service center will have all the correct service information to determine the problem for you. You can call Insignia customer support at this telephone number 1-877-467-4289. You can also got to the customer support website at www.insignia-products.com. Go to the support section and ask them for help on how to get service for your television. I hope this information helps you with your problem.