Inside some Chinese Traditional Medicine book (forgot the name), I read that CRT monitors or TVs give out continuous X-rays (radiation).
Also in another book (also forgot the name), I read that plants planted near CRT monitors or TVs started dieing after a few days.
Other reports have stated that Plasma TVs give out another sort of radiation.
In that same Chinese Traditional Medicine book was also stated that Fluorescent light bulbs and tubes, give out light rays that make people agitated and other detrimental effects. However, in most LCD displays the back-lighting is Fluorescent tubes.
White LEDs give out high frequency purple light, which according to an Alternative Healing book, prolonged exposure to purple light have depressing effects. You must remember that white LEDs was a flop, scientists was trying to make purple LEDs and the result was an "almost" white LED, giving rise to the now popular white LEDs.
According to Masaru Emoto's Water Crystal books, water that was placed near to a television, made ugly water crystals.