what cable do i need to connect my 2009 13" macbook pro to my Vizio tv or any tv?

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    You need a "mini DisplayPort to HDMI cable". Google or search the Apple Store with that term in quotes and you will find many options. That's only half the issue for TV viewing with Macs older than 2010, however.

    The 2009 MacBooks (and I'm 99.9% sure this applies to the Pros from then, too) won't pass sound through the mini DisplayPort, only video. So you will need a separate audio solution. You can listen through the computer's speakers if you want, but the sound won't be great. The only other option for sound output is to use the Mac's headphone port to connect a 3.5mm stereo cable to, well, something. I'll try to explain below.

    Vizio TVs are not configured to allow you to pull a digital video signal off the HDMI input and an analog audio signal off a different input simultaneously, so if you connect the mini DisplayPort to one of the TV's HDMI ports you will not be able to get any sound through the TV speakers, and will need some other speaker somewhere in your setup. As I said above, this could just be the computer's speakers if you don't want to use any other cables, but if you want better sound you can run a headphone cable to something like a small portable speaker, or to a full-fledged stereo receiver. I ran a cable which split my 3.5mm headphone port into 2 standard red and white RCA stereo connections into the back of my surround sound stereo receiver and listened that way. It worked great for years.

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