Welcome to SevenForums I notice that in monitor it's listed as PNP, if windows doesn't recognize the monitor you'll usually have resolution problems.
If you have a primary display and the TV is a secondary display then you will need to install the driver
file (.inf file) for the primary display once windows recognizes it you'll have full control of it's resolutions.
Also if your only using your TV letting us know it's make and model can also help with diagnosing the problem.
Their is a program called powersrtip that allows you to change resolutions and resizing of the screen. PowerStrip 3.75 download from Guru3D.com
If we can get more information on the TV and possibly after you've tried using powerstrip we'll have more ideas.