Will HD ruin my TV?

[phpguru]

Well this is really odd. I have a normal TV (4:3 and not high def). However when I change the channel 720 (a high def equivalent channel I get for free), there are black bars on the top and the bottom and its really clear. I want to know if this is will harm my TV if I continue to watch this channel due to its higher resolution. I see the wide screen, its much clearer and I don't see a reason to switch back to the full screen version.

phpguru

 

[n7]

Of course not

 

[xtknight]

No, not in the least.

 

[MX2]

Which TV do you have? Just curious.

 

[phpguru]

Not sure of the exact model number but its a 36'' toshiba which is 4 years old. Its not even flat.. I'm really impressed with the quality. For CRTs like old school monitors and TVs isn't it true that a higher resolution than its capable of will harm it? Or is it only the refresh rate?

 

[xtknight]

If it looks fine, it probably is fine. The black bars are normal, they compensate for the aspect ratio difference. Any TV within the last 5 years, especially a 36" oughta have the refresh rate safety features.

But I'm so confused. How is this even working in the first place? How is your regular TV viewing this signal?

 

[UlricT]

dude... are you connected by component?DVI? IF not, you are NOT watching HD... but it MAY be SDTV

 

[phpguru]

The box I have is a Comcast Dual TV Tuner / HDTV Capable. It has component and DVI out but I am only using composite as my TV does not support the others. Even if its not HD, it looks exactly like a DVD would when I play it through my DVD player with regards to the aspect ratio and quality. Mystery, eh? The high def channels that I browse to are advertised as HDTV not SDTV but comcast could be pushing SDTV through since I use composite. I'm not sure.

phpguru

 

[xtknight]

Oh, that makes sense now. No, it will definitely not damage your TV if you're using composite in. It's SDTV: the composite will limit it to only 480i.

 

[phpguru]

If I were to connect the component or DVI I think that it would be HD but svideo and composite are SD.. props to comcast for this free better picture! Thanks for your help guys.

 

[MX2]

You dont use the regular ol Coax?

 

[Sonikku]

If it looks like DVD quality it's probably digital cable. That's about as good as it gets for sd TV's.

 

[squigly]

If you were to leave it on that channel with the black bars on the top or bottom continously you would most likely get burn lines where those bars are. Just watching the occasional show like that should not harm the tv.

 

[MX2]

Originally posted by: squigly
If you were to leave it on that channel with the black bars on the top or bottom continously you would most likely get burn lines where those bars are. Just watching the occasional show like that should not harm the tv.

CRT's dont burn in

 

[YOyoYOhowsDAjello]

Originally posted by: MX2times

Originally posted by: squigly
If you were to leave it on that channel with the black bars on the top or bottom continously you would most likely get burn lines where those bars are. Just watching the occasional show like that should not harm the tv.

CRT's dont burn in

I've seen CRT monitors with burn-in

 

[rbV5]

Originally posted by: YOyoYOhowsDAjello

Originally posted by: MX2times

Originally posted by: squigly
If you were to leave it on that channel with the black bars on the top or bottom continously you would most likely get burn lines where those bars are. Just watching the occasional show like that should not harm the tv.

CRT's dont burn in

I've seen CRT monitors with burn-in

Absolutely, CRT's most definately suffer from burn-in.

 

[MX2]

Originally posted by: rbV5

Originally posted by: YOyoYOhowsDAjello

Originally posted by: MX2times

Originally posted by: squigly
If you were to leave it on that channel with the black bars on the top or bottom continously you would most likely get burn lines where those bars are. Just watching the occasional show like that should not harm the tv.

CRT's dont burn in

I've seen CRT monitors with burn-in

Absolutely, CRT's most definately suffer from burn-in.

Hmmm...I have owned nothing but CRT's that stay on for countless hours with video game images, station moniker's, etc. and never seen burn in...oh well. *shrugs*

 

[Kyanzes]

Originally posted by: rbV5

Originally posted by: YOyoYOhowsDAjello

Originally posted by: MX2times

Originally posted by: squigly
If you were to leave it on that channel with the black bars on the top or bottom continously you would most likely get burn lines where those bars are. Just watching the occasional show like that should not harm the tv.

CRT's dont burn in

I've seen CRT monitors with burn-in

Absolutely, CRT's most definately suffer from burn-in.

CRTs can burn in ofc, however we are talking about black bars and not white ones (or anything bright) so I highly doubt that they would leave a visible mark. Burn in can be an issue on a CRT used in a shop displaying constant stuff like frames of a program for years.

Edit: has anyone ever noticed a burn-in on a TV caused by the channel logos displayed on the edges of the screen?

 

[rbV5]

Originally posted by: Kyanzes

Originally posted by: rbV5

Originally posted by: YOyoYOhowsDAjello

Originally posted by: MX2times

Originally posted by: squigly
If you were to leave it on that channel with the black bars on the top or bottom continously you would most likely get burn lines where those bars are. Just watching the occasional show like that should not harm the tv.

CRT's dont burn in

I've seen CRT monitors with burn-in

Absolutely, CRT's most definately suffer from burn-in.

CRTs can burn in ofc, however we are talking about black bars and not white ones (or anything bright) so I highly doubt that they would leave a visible mark. Burn in can be an issue on a CRT used in a shop displaying constant stuff like frames of a program for years.

Edit: has anyone ever noticed a burn-in on a TV caused by the channel logos displayed on the edges of the screen?

CRT's do suffer from burn-in, and it definately can take a matter of a few weeks as well, ....I've seen it many times on our workstations at work which continually display a single screen. The black bars are a stark contrast, so I'm not sure why you think that they are less susceptable, since thats not really the case at all. Its recommended that you simply mix your viewing and it shouldn't be a problem, thats doesn't mean that CRT's are not susceptable, since they most definately are.

 

[MX2]

Originally posted by: Kyanzes

Originally posted by: rbV5

Originally posted by: YOyoYOhowsDAjello

Originally posted by: MX2times

Originally posted by: squigly
If you were to leave it on that channel with the black bars on the top or bottom continously you would most likely get burn lines where those bars are. Just watching the occasional show like that should not harm the tv.

CRT's dont burn in

I've seen CRT monitors with burn-in

Absolutely, CRT's most definately suffer from burn-in.

CRTs can burn in ofc, however we are talking about black bars and not white ones (or anything bright) so I highly doubt that they would leave a visible mark. Burn in can be an issue on a CRT used in a shop displaying constant stuff like frames of a program for years.

Edit: has anyone ever noticed a burn-in on a TV caused by the channel logos displayed on the edges of the screen?

Thats what I meant by station moniker's

I have a KDS CRT here at work that has been displaying the same image for 2 yrs @ about 12-18 hours per day(parking lot security cam) and while the image changes because of vehicles moving in and out, the basic image remains unchanged. No burn in at all.

 

[xtknight]

Originally posted by: rbV5
CRT's do suffer from burn-in, and it definately can take a matter of a few weeks as well, ....I've seen it many times on our workstations at work which continually display a single screen. The black bars are a stark contrast, so I'm not sure why you think that they are less susceptable, since thats not really the case at all. Its recommended that you simply mix your viewing and it shouldn't be a problem, thats doesn't mean that CRT's are not susceptable, since they most definately are.

Isn't black on a CRT the absence of any light in that area whatsoever?

 

[rbV5]

Originally posted by: xtknight

Originally posted by: rbV5
CRT's do suffer from burn-in, and it definately can take a matter of a few weeks as well, ....I've seen it many times on our workstations at work which continually display a single screen. The black bars are a stark contrast, so I'm not sure why you think that they are less susceptable, since thats not really the case at all. Its recommended that you simply mix your viewing and it shouldn't be a problem, thats doesn't mean that CRT's are not susceptable, since they most definately are.

Isn't black on a CRT the absence of any light in that area whatsoever?

No, no display can actually display "true" black. The "bightness" control on a CRT (LOL) is used to control the "black-level" and use of a test pattern is required to properly calibrate the level. Its probably the most important aspect in properly setting up a CRT since improper black levels will throw color reeproduction off accross the board.

 

[xtknight]

Well I guess what I meant was the electron guns aren't painting in that portion so it shouldn't be burning anything? There's always the imminent light leaks from other pixels. Or I don't know what I'm talking about? I haven't had the problem with my old 17" CRT. I never noticed burn-in on my dad's CRTs either. Probably because not one thing is left open all day.