A:AnswerNo it won’t help you get more channels as you need internet in order for this device to operate.
If you have cell phone reception you may try to purchase an hotspot from your carrier it’s a convenient way to have internet at home in remote locations.
A:AnswerIf the TV was manufactured after 2010, it has a USB port that will autoplay Jpeg files. All you need is a USB memory stick to enable that function