It may be possible that the video recorder settings are outputting in a 4:3 mode, which would cut the sides off of the widescreen picture leaving black bars on the right and left sides.
What is the video recorder? Is it a VHS, or camcorder, or DVR?
I am having trouble with the picture on our TV. I think after my husband tried to hook up our video recorder to it he must have accidently changed the settings. Now the picture appears to cut off on the right and left sides. I have gone into the picture options to try and fix this but nothing seems to work to get the full screen size without cutting off the sides. I have tried the just scan option, 16:9 option, and both still cut off on the sides. Any ideas? Thanks!