Working on a TV can be difficult and dangerous due to the high voltage circuits inside. Always remember to unplug any TV before trying to service it and if unsure of the proper procedures, seek the service of a trained professional.
I'm sorry to hear that your television has malfunctioned and I would like to assist you. I have attached an image that shows the location of the thermal fuse and
Sears Parts Direct
is a direct link to the replacement fuse. It is listed as a thermostat on the website, but I have verified the part number as being correct. Be sure to unplug the television first, as you can verify its condition prior to replacement. Use a multimeter set to ohms on the leads and it should show 0-1 ohms. Anything much greater or OL indicates that it has failed. The usual cause for this condition is the cooling fan and air plenum needing to be cleaned, or the television is in an area that does not allow enough air flow to get to the air ports.
Please let me know if you would like any further assistance.