Televisions are defined according to the display technology used to reproduce the images, the most common are LCD , LED and PLASMA , but we can also find DLP, OLED and AMOLED.
We will Explain you how know what kind is your TV and how found the Model number.
Some models have the model number on frontal or side labels, but, the most brands use a back side label.
In Some TVs is possible take the model number from the setting menu, in Info section.
If is no possible move the TV, you will can use a phone camera for take a model number picture