DaveC wrote:

A Gateway 26" LCD monitor/TV is getting warm. I measure 115oF (45oC) with a
contact-type thermocouple sensor attached to a DMM.

I'v been considering adding a couple of small 12v box-type vent fans to get
rid of some of the heat from the active components in the back of the unit.

Should I be concerned? What temp is safe for such a display?

Thanks,

If you use a fan that is quiet enough to not disturb you but strong
enough to remove some of that heat it could make the TV last a lot
longer. Your best bet is to have the fan near a top vent drawing the
heat out.
Cooler air should be drawn in through lower vents.
Dust will also be drawn in and dst can trap heat - so it's a good idea
to use some compressed air to clean it out every few weeks.