I bought a no-name 19" LED TV on the internet
for just over $100. I wanted to use it as a monitor
for my laptop
nav program. It has 12vDC input, VGA, HDMI, multiple USB. Its mounted on a swing arm so it stows against the hull
when at sea.
Its been onboard for more than 2 years now, back and forth across the pacific, works fine, and it is quite tolerant of 14.4 VDC when batteries