Q. I have a three-season home that's closed up and unheated during winter months. Early HDTVs (LCD/plasma) couldn't be guaranteed free of damage by their manufacturers if their screens were subjected to temperatures at or below freezing. A neighbor recently bought a plasma screen, believing it wouldn't be susceptible to such low temperatures.
Q. I read somewhere in your magazine that cathode-ray tube TVs have a half-life of 30,000 hours. At 6 hours a day, that's around 13 years. I'm about to make the HDTV plunge. What are the half-life specs for plasma, LCD, and DLP? Jeff Dorscher Glendale, AZ
Q. Why does the volume jump 20 dB whenever I switch from CBS to Fox News on my cable box? Shouldn't there be a standard broadcast volume to prevent us from blowing out our $2,000 speakers? William B. Fankboner Indio, CA
Q. I have been using the surround processor in my receiver, fed to a multichannel amplifier, and am considering doing so again. Can you clear the air regarding voltage output from a receiver or preamplifier, amplifier input sensitivity, and amplifier input impedance.