Do modern tubes suffer from burn in?

[nemt]

Do modern flat CRT screens have any burn in issues? I ask because I'd rather watch SD television in 4:3 mode, but don't want the black bars burning in.

Thanks in advance.

[Ratman]

All CRT's and plasma can suffer burn in without proper setup and not "exercising" the screen.
Follow the precautions, all will be well. Plenty of previous threads in the subject.

[huberjgl]

I alternate on mine, Samsung TXR-3080WH-30" CRT HDTV

16x9 HD I watch fullscreen, of course.

SD content it depends, if it's letterboxed, then I'll zoom it full, but if its 4x3, I'll just watch it as sent.

TV gets a dose of some each night, plenty of excersize.



Jerry

[nemt]

So as long as I alternate between aspect ratios I shouldn't have any burn in problems?

[ChrisWiggles]

Properly calibrate (lower white level significantly) and risk of wear will reduce dramatically. Further, direct-view CRTs are less susceptible than RPTVs which drive the phosphor MUCH much harder.

All phoshor-based displays will wear over time. This includes all CRTs, and plasmas.