My 61 inch samsung tv with the L E D, switches the picture size be it self. it goes from wide screen to a much smaller screen

Many units will self adjust the image size, but the size of the image you will see depends on what size it was originally recorded in. You can change it in the settings of the TV but most likely it will not go bigger if it was shot smaller.

my samsung has a blue button on the lower right side of the remote the botton is labled (P-size) pressing the button cycles the set for the several screen size functions.--Wide Fit--4:3--16:9. If you are watching network TV on an antenna you will get a full picture on 16:9, but you may be watching on cable without HD.

See if there is a "wide" button on the remote. Should scroll through the display size options
Go to menu and picture adjustments are there as well

Hi
Your TV is set to "Store Demo Mode", this means people can play with them in the shop and it always returns back to a normal picture every hour or so. Here's how to fix it :)
Press Source - select TV.
Press Menu - Select the Setup menu (its the picture of the cog on the left 4th picture down)
Select "Plug and Play"... the default pin is 0 0 0 0
Select your language
Make sure "HOME USE" has a yellow box around it.
Select your country.
Scan in your channels if you need to?
Fixed :)
By the way... I have the same tv ;)
Michael

if you are watching cable or satelite, you need to change the screen format output from the source to make sure it matches with the TV

turn off auto format setting in user menu

for clarification, may i know the model # of your TV? and do you have a problem on the sound

possible color wheel,call for est cost of repair

get a smaller tv

yes u will nee dto upgrade video card to suport that native resotion of your screen hi 1440x900 ect ok wide need better video card ok least 100 doler one