TV types -
CRT (Cathode ray tube) is not out.
Plasma - light passes through xenon & neon molecules & release photons, creates an image.
LCD have 2 light sources - backlit & edge-lit - have CCFLs (cold cathode fluorescent lamps)
LED have Light emitting Diode
Comparison Table
Plasma LCD LED (latest)
Price 42" 45-50K 60-75K 80-100K
Price 32" -- 30K 50K
Price 22" -- 15K 20K
Life 5 hrs./daily 33 Yrs.. 33-55 Yrs. 33-55 Yrs.
Power 300 230 180
Fast moving pic. no trailing line blurr blurr
Brightness good in dim light in bright light in bright light
View angle 180 120-130 150-170
Thickness 3" & heavier of 3 2" 1" ligher
Above 42", Plasma is better than LCD & LED.
LED is latest so costlier than LCD
LCD 32" & 22" would be smart purchase for masses.