When it comes to TVs and speakers, bigger is most definitely better. Smaller models can be perfectly acceptable, and, in small rooms, they're a necessity. But, if you have the space, you can't beat a large screen matched with a set of heavyweight speakers and subwoofers. The appeals of big-screen video and high-end audio are not so different; both deliver incredible scale, clarity, lifelike depth, and a more emotional experience. The only downside to a big system is that, once you get used to living with it, there's no going back; a 30-inch TV and pint-sized speakers won't get your mojo working ever again.