I just found SpotRunner, a web-based service that will help to put your business on TV.  Pick a pre-produced ad, add your name and contact info, choose your network and TV schedule, and go.  Very cool, and pretty cheap too.  From the website:

It used to be difficult - and expensive - to advertise on television. Only big companies could afford to do it because it involved hiring an ad agency to make the actual ads, and a media buying company to make sure they got on TV at the right time. Now Spot Runner does everything for you, and at a price any business can afford. Here's how:

The Ads: We have a vast library of world-class ads. You choose the ad you want and then personalize it by adding your company name, or images of your products, or details about an upcoming promotion. We charge you for making those personalizations, and for getting your finished ad ready to be broadcast on television.

The TV schedule: Once you've chosen your ad, we help you create an effective schedule of TV networks and times to ensure that your ad is seen by the right people. Then we send off your personalized ad and make sure it runs where and when it's supposed to. Our prices include all the time and effort it takes to do that.

Most ads can only be used by one local business at a time. In other words, once you've purchased your ad no one else in your area can use it. There are some exceptions to this, but when you choose your ad you'll see your options for exclusivity, and you can protect your ad as much or as little as you want.