The platform wars are moving to smart TVs. Don't believe it? Samsung is putting Tizen on all its smart TVs this year. LG's own sets already have webOS inside. Now Panasonic is joining the fray, but not with an operating system that it has developed itself. As it showed at CES last month, the consumer electronics maker is betting big on Firefox OS and it is announcing that all the members of its new 4K VIERA TV line will be employing the web-based platform for its user interface.