Comment on Ask HN: Tips for hacking a TV?Comments−rgovostes1yA decade ago my LG plasma TV had a serial port for using it as digital signage (I think). If I spammed the serial port during boot I could interrupt U-Boot but they had disabled echoing out. I never figured out if I could do something useful or not.−bigbaguette1ySerial ports on tv are usually for screen control, as in turn on/off, change input, set volume... Like what you can do with the OSD and the remote
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A decade ago my LG plasma TV had a serial port for using it as digital signage (I think). If I spammed the serial port during boot I could interrupt U-Boot but they had disabled echoing out. I never figured out if I could do something useful or not.
Serial ports on tv are usually for screen control, as in turn on/off, change input, set volume... Like what you can do with the OSD and the remote