A:AnswerThe LG 720p LED TV – 24” Class (23.6” Diag), Model # 24LF454B only has an HDMI port on it, it does not have a USB port, at least not one that functions like the regular USB ports do. That USB Port labeled as 'Service Only' is a USB to Serial Converter/RS-232C port that can be used for external device control (such as a computer or A/V control system). ^CP
A:AnswerDepends. The manual says the TV's wall wart power supply outputs 19VDC at 1.3 amps. Your RV can probably supply the amps, but a 7 Volt difference in nominal operating voltage may not be good for the TV's electronics. And you'd need to make yourself an adapter for a power cord if you tried. Try contacting LG customer service, maybe they make a 12V adapter for RV use.
A:AnswerWe are sorry to see your TV has no power. You can troubleshoot power issues from the following help article: https://www.lg.com/us/support/product-help/CT10000018-1441914332865-no-power ^CP
A:AnswerHi Rafa. All TV manufactured in the U.S. or entering the U.S. regardless of size since March 1, 2007, are mandated by the FCC to include an ATSC tuner, also often called an HDTV tuner that allows for reception of digital television channels transmitted by television stations in the U.S. as Over-the-Air (OTA) broadcasts. This LG 720p LED TV – 24” Class (23.6” Diag), Model # 24LF454B-PU also includes an NTSC and a QAM tuner...^IFV
