machines32,

Well, there are two ways to go with this.

1. You could get a voltage regulator (APC) unit that will not only both hold the voltage level constant, but often times take the beating for a serious surge (rather than you television).

2. You could get a regular surge protector. You want one that has no less than 1000 joules, and a response time of less than one nanosecond.

If you're really interested in a good read on surge protectors and really having your facts in hand to make the best educated decision, you might check out this link:
http://electronics.howstuffworks.com/surge-protector.htm

It has a lot of relevant information that will help you seperate the cheap from the effective.

--HDTech