Mark just bought a Vizio SmartTV and he wants to get an inexpensive home theater system to go with it. Leo says the best thing to do is buy an A/V receiver that can drive up to 5 speakers plus a sub woofer. A lot of people opt for the Sound Bar option because they don't have to deal with wires. He should get one with a subwoofer to go with it.
Another option is a Home Theater in a box, which often comes with a Blu-ray player as well.