And I doubt many Panasonic flat-screen owners realize they're Linux users. Maybe they'll be able to stumble over that remote-control option which shows the GPL license, if they're lucky. There are other TV vendors using Linux too. I wouldn't be surprised if the vast majority turn out to do so.

BTW, one of these days I'm going to try to put and SD card formatted as ext2 into a Panasonic TV (the one for slideshows), to see if it recognizes it. Their kernel is compiled with CONFIG_EXT2_FS=y