How to Make a Computer Screen Size Bigger on a TV

Hooking your computer up to your TV is a good way to watch videos or look at pictures stored on your computer. Once a TV is connected to your computer and the display moves to the TV, the television acts just like a computer monitor would, so changing the screen size works the same way as on a computer monitor, or when using a projector with your computer. This procedure will change your screen size in Windows Vista and Windows 7.

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When connected to your computer, your TV can act as another monitor.

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Connect your computer to your TV so that the display shows up on your television.

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Click the "Start" Menu and open the "Control Panel."

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Open the "Appearance and Personalization" menu, and click "Adjust Screen Resolution." This will bring up a window with "Display," "Resolution" and "Orientation" options.

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Click on the arrow next to "Resolution" and select the resolution your television is designed to display. This information can be found in your TV's owner's manual.

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Click "Apply" and then click "Keep" to use the new resolution.