To clarify this a little. Black bars will not cause burn in on a plasma tv. They cause the areas of the TV to wear out at different rates. If you watch a lot of 4:3 picture, the middle of the TV will get a lot more use. As a precausion, most plasmas use gray bars instead of black and newer Dish receivers do this too. The gray bars activate those parts of the screen so they wear out more uniformly with the center.
Always have to adjust HD format !
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To clarify this a little. Black bars will not cause burn in on a plasma tv. They cause the areas of the TV to wear out at different rates. If you watch a lot of 4:3 picture, the middle of the TV will get a lot more use. As a precausion, most plasmas use gray bars instead of black and newer Dish receivers do this too. The gray bars activate those parts of the screen so they wear out more uniformly with the center.
Good clarification. I used the generic "burn in" so as not to confuse, but you are 100% right PHXHoward.
Burn-in applies to CRT RP or FP (rear or front projection) but not to DLP RP or FP. True burn-in requires a phosphor or other material that takes a latent image. So to some extent it applies to plasma cells and LCD films.
DLP (digital light projection--TI technology) has a light source and mirrors. I suppose some of the million mirrors on a chip could become stuck but unlikely, fortunately, and no burn-in. My DLP is illuminated by LEDs, the lifetime is long but unknowable. With the reduced prices for LCD and even plasma, DLP is seldom featured. I like it.
-Ken
DLP (digital light projection--TI technology) has a light source and mirrors. I suppose some of the million mirrors on a chip could become stuck but unlikely, fortunately, and no burn-in. My DLP is illuminated by LEDs, the lifetime is long but unknowable. With the reduced prices for LCD and even plasma, DLP is seldom featured. I like it.
-Ken
Actually, LCDs can suffer from image persistence. It's not the same thing as burn-in but can cause a temporary ghosting on LCD panels. Usually, unplugging the lcd panel from power for a few hours will allow the crystals to reset but sometimes you have to run a full white screen for awhile to force the crystals to all behave the same.
Sounds familiar but I never tried the white screen thing. Does it have to be via VGA or DVI or can a white screen temp DVD work? One day I was watching for an hour some cable program... I think a space shuttle launch or something... and there was a very bright 1/2 inch green line on the left side of the 4x3 picture. Since that time there has been a dark line there that shows mostly when the picture is blue or gray. Coincidence maybe but the problem wasnt there before. Its annoying at times but since its out of warranty I am not ready to pay for repairs yet.
Just a white screen from any source will do.
You can make a Powerpoint slide show with a white slide and a black slide and flip it back and forth every 6 to 10 seconds for about an hour.
I should of Checked more Carefully.
I wasnt aware that CBS morning show was only in SD format as the Dishnetwork guide said it was in HD,that was thier mistake and hopefully they will fix that on their guide.Thanks for informing me of this.
I wasnt aware that CBS morning show was only in SD format as the Dishnetwork guide said it was in HD,that was thier mistake and hopefully they will fix that on their guide.Thanks for informing me of this.
The guide comes from a third party, Dish has no control over it. Lot's of HD channels show lots of SD format programming.
I contacted the local affiliates to ask them about their HD .Heres a reply I got back from a Chief Engineer at KEYT (ABC) Santa Barbara.Tell me wht you think of his response.
"Dear MR(namewithheld)
"I know what you mean GMA goes back and forth between programming feeds in the wide 16 x 9 format and the regular 4x3 format with side panels.This is because they originate segments of programming from various sources.Some only have 4x3 material available.
But all is broadcast in TRUE HD.High Definition doesnt mean necessarily wide screen 16x9 format.HD has to do with the detail of the picture determined by the numbers of horizontal and vertical lines.
Dave Williams,Chief Engineer ,
KEYT (ABC) Santa Barbara""
I guess it explains why some of GMA is only in the 4 x3 format..I just thought if a show says HD it meant wide screen all the way.I guess I have alot to learn about HD.
(This is a follow up on my original post)
"Dear MR(namewithheld)
"I know what you mean GMA goes back and forth between programming feeds in the wide 16 x 9 format and the regular 4x3 format with side panels.This is because they originate segments of programming from various sources.Some only have 4x3 material available.
But all is broadcast in TRUE HD.High Definition doesnt mean necessarily wide screen 16x9 format.HD has to do with the detail of the picture determined by the numbers of horizontal and vertical lines.
Dave Williams,Chief Engineer ,
KEYT (ABC) Santa Barbara""
I guess it explains why some of GMA is only in the 4 x3 format..I just thought if a show says HD it meant wide screen all the way.I guess I have alot to learn about HD.
(This is a follow up on my original post)
No, HD does not mean 16x9. I think it should since I'm not aware of any 4x3 HD TVs being sold.
I'm guessing that programming is being recorded in 4x3 HD and down-resed to SD so that the can cover both feeds?
Regarding Today and GMA:
If it's being originated in 4x3 it is likely not HD, then the network takes it, upscales and inserts it into the HD broadcast with sidebars and the various graphic overlays.
Technically at that point they are broadcasting a 16x9 HD signal, the majority of which just happens to be an upscaled 4x3 SD picture.
Then the local station takes that and puts it on their HD channel if they have one. They also cut the sides off, and use it as the input for their SD channel source and analog if it still exists. If the station only has one channel (HD-sometimes) and no dedicated SD channel, then your provider (dish etc.) is doing the same thing at their uplink - grabbing the HD version and cutting off the sides - for their SD LiL channel.
The cut-ins of the local station, if they aren't producing in HD yet, will be 4x3 pillarboxed as well.
Make sense?
If it's being originated in 4x3 it is likely not HD, then the network takes it, upscales and inserts it into the HD broadcast with sidebars and the various graphic overlays.
Technically at that point they are broadcasting a 16x9 HD signal, the majority of which just happens to be an upscaled 4x3 SD picture.
Then the local station takes that and puts it on their HD channel if they have one. They also cut the sides off, and use it as the input for their SD channel source and analog if it still exists. If the station only has one channel (HD-sometimes) and no dedicated SD channel, then your provider (dish etc.) is doing the same thing at their uplink - grabbing the HD version and cutting off the sides - for their SD LiL channel.
The cut-ins of the local station, if they aren't producing in HD yet, will be 4x3 pillarboxed as well.
Make sense?
I put my dish reciever in 16x9 and put the TV on 'scan'. It shows bars when the the picture is 4x3 and fills the screen when it is 16x9. Its a little irratating at first, but you get used to it. What bugs me the most is that channels (like CNN) puts up those stupid "HD" bars on the sides. I think it looks stupid. At least put up something useful like a weather widget or something. FOX is much better.
I'm really surprised they haven't started filling the bars with advertising. Won't be much longer I am sure.
Also, Ellen , the price is right, Live with regis and kelly, e.t., oprah, & dr phil are in hd.
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I love ESPN News' implementation, with one oversized bar showing good information. It gives the channel the flexibility to show sd content (say, highlights from some game shot in sd), without feeling like they are wasting screen real estate. I also like what sportscenter does in the morning, with the rundown bar, giving them similar flexibility.
Price is Right, YES it is a CBS network program, but all the others are syndicated and HD depends on the capability of the local station.
Also depends on the desire of the local station to spend money to buy the HD version. "Entertainment Tonight" is in HD but not on my local HD station.
Yes. I just brought the other syndicated shows up, because y'all were including Jeopardy and Wheel of Fortune
