I have black showing on top and bottom of screen

Go into menu and under CLOSED CAPTIONS look to see if TEXT is engaged---if it is set to text 1 turn it off or to text 2,3,4, etc

Text was a feature never really used but it is there, some cable boxes also have this setting/feature.

Let me know if you have questions.

You are watching a show or movie that was recorded in letterbox format, THIS IS NORMAL !

Hello

If you are watching television and you see black lines on the left and right sides of the screen, check to see if you are watching an HD broadcast or a standard definition broadcast. You can do this by bringing up the TV guide menu on your remote. If the show is in HD, it should take up the full screen. However, if it is not HD, bars will be present on the left and right of the screen. That is because standard definition programing is in 4x3, which will not take up the entire screen.

If the picture you are watching not only has black bars on the sides, but on the tops and bottoms of the screen as well, your "Zoom" mode has somehow gotten off-kilter. Press the "Zoom" button on the remote until the image appears correct. If this does not work, power down the television, wait a few moments, and power the TV back on. The image should be correct now.

If the image on the screen looks stretched or squished, this is because your HD cable receiver is not set up properly for your widescreen television. Press the "Menu" button on the receiver

Whenever the screen is full and a line with calculation result comes up at the bottom of the screen, the screen all of a sudden shows things in a weird way and can't be read. By press "2nd+mode"(=quit), or try reset button (a small hole which a pin can only be used to press it to RESET. Gud Luck

If this happen on DVD's it is because the DVD is formated to Widescreen, 16x9 size, your TV is 4x3 size. Unless the Menu has an option of Picture size, or Format, to set to Full screen. there is nothing you can do other than be sure to check the DVD for picture format size before purchasing.

This should be an (LCD) screen. They are the ones that usually have this kind of problem. You will need to take it to have it checked if the problem is the VGA signal cable leading to the monitor. They will check if it is properly connected or has gone bad. It is very unlikely that the screen is bad. When this VGA signal cable goes bad it could result in a totally blank screen.

I think you can use doremisoft flip converter that can crop your black bars and other addition editing functions, such as cut clips, join videos, add special effect and so on.
YOU can free download at:
http://www.flip-converter.com/article-flip-mac/flip-video-to-avi-converter-mac/
have a try.

try adjusting the aspect ratio. on widescreen movies or shows you will still get the black bands on the top and bottom. if you play with the aspect ratio you can sometimes get rid of it

Normally dvd's have a widescreen and full screen option somewhere in the settings menu. Try to find these two options and just switch to Full screen.

look for screen format in video mode menu or if you have original remote you have that option in your remote