Yes you can have both. Have a HDMI Cable for direct tv and the regular cable for the antenna 

It is good for local broadcast channels. 

I couldnt get it to work properly at all. 

Extremely. Just plug it in, run the channel scanner on your tv and you are set 

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This antenna will receive over the air (OTA) HD TV. I cant speak to your tv but I dropped cable 13 months ago. With Amazon prime you will receive a whole bunch of content. With HDTV you need a fair amount of band width to avoid buffering. You will probably also want an over the air digital video recorder (DVR) unless you are willing to put up with adds. I use Tablo. There is a whole bunch of minutia on how to get what you want but my house entertainment went from $250 down to $95 a month . Good Luck it is worth the savings don't pirate anything. Jim 

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