High-definition TV displays investment opportunities

— -- Q: What companies can I invest in to get a piece of the high-definition TV boom?

A: Seems like every year TVs get bigger, and it's only natural for investors to look for ways to cash in on the trend. Here is a list of some of the publicly traded companies that have their fingers in the high-definition TV business:

That's just a partial list, to get you thinking. Keep in mind, though, that just as the dawn of stereo TV was a short-lived boom for TV makers, the same will probably be true with high-definition.

Matt Krantz is a financial markets reporter at USA TODAY and author of Investing Online for Dummies. He answers a different reader question every weekday in his Ask Matt column at money.usatoday.com. To submit a question, e-mail Matt at mkrantz@usatoday.com. Click here to see previous Ask Matt columns.