Most home entertainment systems today comprise of a number of electronic gadgets that will include mainly the LCD TV as its focal paint, a set of speakers, a video source like a DVD player, digital video recorder, Blu-ray player, and even some video game consoles. And with all the new technology and designs being offered today, some may even opt for a unit that has combined the features of two or three units. For heavy users, there can be the combination DVD player with a digital video recorder using a hard disk for recording TV shows.