http://en.wikipedia.org/wiki/Cathode_ray_tube

Check the Health Danger section if you're worried.

Ohh and DannyMan, I could try and explain why you get headaches when watching TV, but the web does a much better job for me

"The constant refreshing of a CRT can cause headaches in migraine sufferers and seizures in epileptics, if they are photosensitive. Screen filters are available to reduce these effects. A high refresh rate (above 75 Hz) also helps to negate these effects"

Go get your learn on
benagain Reviewed by benagain on . Can you feel T.V's and Monitors? Does anyone ever come in the house or be in another room and the t.v. or computer monitor is silent but some how you can hear a faint buzz coming from it and you can feel it in a way. Does anyone else have this happen to them too or is it just me? Is it the radiation or something? Rating: 5