The Picture Size on my Toshiba TV keeps changing by itself (Auto Aspect)

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Started ‎03-06-2012 by
Modified ‎04-24-2013 by


When a Toshiba TV has been turned off or inputs have changed the default picture size goes to "Natural" or otherwise changes from where its last setting. Is there a option that prevents this from happening with each power cycle?


Depending on TV model, there is an option in the TV menu either under "Picture" > "Theater Settings" called "Auto Aspect Ratio" or "Settings" > "Preferences" under "Display Settings".  Set it to OFF to prevent the automatic resizing. If you can not find the Auto Aspect feature in your TV menu or want more information about the feature, consult your TV's Users Manual available at


Toshiba TV's give you the ability to manually change the picture size (aspect ratio) to many differnet formats (Full, Native, Theater, etc..). The Auto Aspect Ratio feature tries to evaluate what is being displayed and present that in the best aspect ratio. By default Auto Aspect Ratio is turned ON and when turned OFF it will retain its current setting until manually changed.