If by chance you have the same TV with a similar problem, just add the following two lines to the "Monitor" section of your /etc/X11/xorg.conf...
HorizSync 50-75It should look something like this when you're done...
VertRefresh 60-75
Section "Monitor"Here are the links...
Identifier "LTV-27w6/32w"
Option "DPMS"
HorizSync 50-75
VertRefresh 60-75
EndSection
https://help.ubuntu.com/community/FixVideoResolutionHowto
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/3731
https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/88131