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 are charging...
Just went thru this search. Several brands (e.g. - LG) have models that come with either an internal or external brick that converts from 110VAC to 12VDC. If you find one of those, then simply cut the brick and out wire direct. Unfortunately, I was unable to find one of the new low energy usage models with that setup. After figuring the energy usage options, I went with a low energy model that draws 110VAC and just use the inverter.
All flat screen televisions convert to DC, either externally or internally. Some might have a lower internal voltage than 12V though.