L
LCD TV
LCD TV generates images via a light beam that goes through small cells containing liquid crystal (hence the name Liquid Crystal Display), that are controlled by an electric current, and thus can generate the 3 basic light colors to form images; red, green and blue (RGB).
M
Middleware for Digital TV
It's the intermediate software layer that allows the development of interactive applications for Digital TV, regardless of the hardware platform used by set-top box manufacturers.
O
Open TV
A system that broadcasts freely, without levies and duties, TV signals with visual audio content, and users must only have a TV set with a proper antenna to gain access to that content.