Adjusting TV picture - Sony Trinitron

Here you see the black edges of the TV image. When we play back a DVD with a DVD player those black areas top and bottom cut off part of the video.
Sony Trinitron

LVL 25
nickg5Asked:
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Wayne88Commented:
It's because the DVD you're playing (or the HDTV channel you're watching) is made for wide-screen format/aspect ratio that your standard TV cannot accommodate and that's why you see the black bars.  There is nothing you can do unless if you change the TV.  Some TV or DVD player has the "full screen" mode to get rid of the black bars but all it does is zoom into the picture.

"If you watch a high definition (HD) program (16:9 ratio) on a standard TV (4:3 ratio), it will place black bars at the top and bottom of the screen where there is no picture. Sometimes an HD channel will show a standard program (with black bars on the sides), so if you are watching on a standard TV, you will see black bars all the way around. If this happens, switch to standard broadcast for that network."

https://www.cogeco.ca/web/on/en/residential/support/110/389/faq-television/channels-and-packages/troubleshooting/why-are-there-black-bars-around-my-television-picture

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Russ SuterSenior Software DeveloperCommented:
It's called letterboxing. It's because the TV has a 4:3 aspect ratio which was traditional in those days. Newer Televisions have a 16:9 aspect ratio. Most DVD content is formatted to reflect this format. A lot of content even uses a format called anamorphic widescreen which is a 2.35:1 ratio and that format will letterbox even on a 16:9 screen.

Your DVD player might allow you to alter the aspect ratio of what you're viewing but it will do this by either stretching the image vertically which will make the picture look distorted or it will zoom the picture in which will cut off the left and right sides of the frame.

Also, WOW! I haven't seen a Trinitron television in I can't even count how many years.
nickg5Author Commented:
I will try to locate the manual for the TV and DVD and check into the settings. Thanks.
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Wayne88Commented:
Glad to help and hope you find the manual.  Cheers!
nickg5Author Commented:
It's not just a DVD played on a table to player. The black horizontal top and bottom also appear when watching various TV channels via cable TV.
Wayne88Commented:
That's expected especially with today's high definition channels the analog TV signals and standard TV resolutions are getting phased out.  You are also probably using some kind of Digital to Analog converter.
nickg5Author Commented:
The cable box may be converting but it's still the old Sony TV. I'm unable to find the manual.
Since there is only one DVD that we need to play at another location I can test that TV and see if it has the newer ratio.
Wayne88Commented:
That's worth a shot.  FYI, I have seen the black bars even on a 1080p flat screen LCD TV when flipping through channels.  It really depends on the resolution of the channel and the TV.  It won't be compatible with all unless if all media agreed to one specific screen resolution as in the old days.
nickg5Author Commented:
Thanks.
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