Serial

Serial need older firmware, 3.24 is known to work, from 3.67 serial doesn't work any more!

http://openlgtv.org.ru/wiki/index.php/Basic_RS-232C_connection_setup

http://code.google.com/p/lg-tv-command/

Firmware

http://openlgtv.org.ru/wiki/index.php/Firmware_versions_history_%28Saturn_6_models%29

Hacks

openlgtv (older)

http://mikko.korkalo.fi/openlgtv/

LGMOD

http://openlgtv.org.ru/wiki/index.php/LGMOD
http://openlgtv.org.ru/wiki/index.php/Achievements
http://openlgtv.org.ru/wiki/index.php/Achievements