Which tv runs cooler led or lcd I have a 40 plus inch and it runs too hot is it normal and do you know the temperature at which all these new tv's run?

LED televisions are LCD televisions. The backlighting may be LED but the image generation is performed by an LCD panel. Cold cathode fluorescent tubes are the alternative to LED lighting and they tend to generate more heat than LED.

It is quite normal for both televisions to get warm. The temperature they reach depends largely on the ventilation they have. An enclosed space will result in the television becoming much warmer than a television in open space.

If you have a problem with temperature, look at the environment before considering a new television. If necessary, think about some small equipment cooling fans to move the warm air away from the television. They can be bought very cheaply, run quietly and are usually straightforward to fit. You may also want to consult a home theater professional for specific advice on your installation.