A:AnswerYes-ish. The attached image shows a vertical arcade game running on a MiSTeR - the TV can definitely display the image vertically but the stands are designed for a horizontal picture. So, I suppose it depends on the source’s output. You would have to find a way to reliably keep the TV standing vertically - maybe mounting it on a wall or using an after market stand.
A:AnswerYes, this TV has a power button at the bottom in the middle.
Long press the button to turn On/Off the TV.
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A:AnswerNo. As noted in the ad, under the section titled "Highlights," this is NOT a Smart TV. However, you could add Smart TV functionality by the separate purchase of a Fire TV Stick, Chromecast, Roku, etc.
A:AnswerAs noted in the ad, under the section titled "Highlights," this is NOT a Smart TV, so you would need a cable hook up. However, you could also add Smart TV functionality by the separate purchase of a Fire TV Stick, Chromecast, Roku, etc.