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Jeff-
There are no voltages near a kilovolt in an LCD TV, but the ones with fluorescent backlights (as opposed to the LED-backlit ones) will have a few hundred volts (if I remember right) for the bulbs, coming from an inverter circuit. I do not know the voltages used in plasma sets, but they are likely higher.
Flat-panel TV sets do not need traditional height/width/linearity controls, because they are digital internally; that is, every pixel on the screen has a known position and a circuit output assigned to it directly. The nearest thing to geometry adjustments would be for scaling analog input signals to the panel's display area, and even that can be done with fixed mathematical counting circuits derived from a crystal oscillator.
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Chris
Quote from another forum: "(Antique TV collecting) always seemed to me to be a fringe hobby that only weirdos did."
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