Also compare all your options. There are places that you can buy LED bulbs ranging in price from $3 ea. to $15 each. The good part about that is many of them come with lifetime warranties and you sometimes have a wider choice of color temperatures. The drawbacks is that they are expensive and most have built in regulators that can interfere with your TV.
Many choose to try out cheap Chinese LED bulbs. For $21 I got 15 of these:
http://www.ebay.com/itm/400492854370, in the drop down, 48 SMD 3528 Warm White. They are a bit "whiter" than the incandescent bulbs but not as bright and WAY cooler to the touch. No voltage regulators either to interfere with the TV. No lifetime warranty, but for this price, they are throw-aways. And we like them a lot.