Most large flat-screen TVs today can be used as high-resolution computer monitors. As a rule, desktop PCs have two video output ports, such as Digital Video Interface (DVI) ones that permit you to connect two monitors. However, some TVs, including Sanyo models, have a High-Definition Multimedia Interface (HDMI) video input instead of DVI. In this case, use a standard DVI-to-HDMI video cable to connect your PC to your TV.
Shut down your computer.
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Plug a DVI connector of the video cable to the available DVI video output on the back panel of your computer.
Plug the other HDMI end of the video cable into a HDMI port of your Sanyo TV.
Press the “Input” key on the Sanyo remote control. Then use arrow keys to select “HDMI” and press “Enter” to set the TV input to the HDMI channel.
Turn on your computer and then log in to a user account in Windows.
Click the "Start" button to bring up the Windows start menu. Then click "Control Panel."
Select the option "Adjust screen resolution" in the Control Panel to open a new window, "Display settings," that contains two square icons labeled as "1" and "2." The icon "2" represents the TV monitor.
Click on the icon "2," and choose one of the following options--"Duplicate my Desktop on all monitors (mirrored)" or "Show different parts my desktop on each display (extended)"--to set the configuration for the TV monitor.
DVI to HDMI cables are available from many electronics stores (including many online).