This probably applies to any nnLC4n LG TV, and it is infuriating! They are turned on by loads of other remote controls.
I first noticed the problem when using an ONKYO CD/receiver. Then last week we got an "IMAGINE" digital photo frame, and I noticed the TV was on when it should not have been, so I widened the search. Same problem with a GENUS dab radio, and a Goldstar VHS (yes I know that is an old LG).
Digifusion and Panasonic don't seem to turn it on, so there must be some discrimination in the IR receiver module!