I don't have a Sony but the only time I did connect my computer to my TV is this. Remove the cable from your monitor and attack it to the back of you TV. O course the TV has to have the same type of connection as your monitor.
The picture quality was poor so I removed it and I've never tried again.
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Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them