Fort Wayne, IN (Indiana's NewsCenter) -- Nine months from Saturday, television as we know it will change.

You may have seen public service announcements featuring the four general managers of TV stations in Fort Wayne.

The spot is part of a national awareness campaign about the conversion to digital television.

Jerry Giesler\Indiana's NewsCenter GM: " This is the biggest sea change that has occurred in tv viewing habits since we went to color."

Indiana's NewsCenter already broadcasts a digital signal, alongside the regular analog one.

But Congress has mandated that next February, all TV stations must exclusively broadcast a digital signal, to free up the analog signals for emergency responders to use.

If you have cable, satellite, or Verizon Fios, you won't notice a difference.

But if you still use an antenna to watch TV, like thousands of people in northeast Indiana do, you'll have to buy a converter box to be able to get the new digital signal.

Coupons for the boxes are available on the internet and through the mail.

And people are getting the message.

Jerry Giesler\Indiana's NewsCenter GM: " As I check the websites, thousands and thousands of people from northeastern Indiana are applying for certificates that give them a discount on converter boxes. As I talk to companies that sell digital tvs, their sales increase every month. Hopefully, we'll talk about it enough that people understand that it's important for getting their information. School closings, public safety, and entertainment."

There's still time to get a converter box.

The transition to digital television will happen February 17th, 2009.

For more information, click on Newslinks in the top right-hand corner of the webpage.