Please allow me to clear up some misconceptions...
DLP, LCD & Plasmas are fixed pixel displays
. This means that they all must scale
the incoming signal to their native resolution
(640 x 480, 800 x 600, 1080 x 1080, 1240 x 768, 1365 x 768, etc.). The picture quality you get on these sets will depend more on the quality of the scaling circuitry in the set, NOT
the native resolution of the signal that is sent by the various stations. Besides, 1080i only has 540 vertical lines present at a time, anyway.
2.) The DLP (& some LCD) sets you are talking about ARE
RPTVs. They're just not CRT (Cathode Ray Tube) RPTVs. A CRT is a scanning
type of display, as opposed to a fixed pixel display. Another CRT display is the old-school picture tube.
3.) The CRT displays we've all watched since "diaper days" all have a number of "hours until half-brightness". The manufacturers just never published them. We've all watched (& owned) "tube-type" TVs well beyond that point. We just have to goose up the Brightness & Contrast controls, when they get a little long in the tooth. The same
is true of PDPs (Plasma Display Panels). PDPs operate very much like CRTs. The picture you see is made up of glowing phosphors on the back side of the glass. That's why they're brighter & have no off-axis dimming issues. The big difference is in what makes the phosphors glow
a.) CRTs have an electron gun, firing a scanning pattern at the phosphors to make them glow, producing the picture.
b.) PDPs have closed
"cells", filled with xenon & argon gasses which, with different voltages applied, make the different colored phosphors glow.
c.) PDPs last as long or LONGER
than any tube-type TV!!!
stop listening to (& buying from
) the uneducated, urban myth passing "ASSociates" at the Big-Box Stores
!!! Ask (& buy from
) someone who at least has a clue.
Besides... we dropped Samsung like a rock, due to poor quality issues. Come by Domes & check out LG's new DLP RPTVs, or better yet, wait for Mitsubishi's DLPs (some will be 1080p capable), coming soon.