About 70% or so of all Zenith tv's and Citizen tv's made by Zenith
since around 1992 till now have defective picture tubes that cause
either a defective green gun giving you bright green screen or a G1
short causing the power supply to become defective:

http://www.iwaynet.net/~nesda/Zen90.html

either way 70% of them or so have a defective crt and many are only a
couple of years old,I tell the customer that an average tv should last
over 12 years and I give my customers Zenith's phone number and I tell
them to complain to them:

LG ELectronics (Zenith/Goldstar)
Alabama,USA
Ph:1-800-243-0000

I have had at least 100 customers call Zenith and complain about those
garbage crt's.