I think it's pretty sneaky of a company to take a number so similar to 1-888-DTV-2009 and use it for their t.v. services company. Is it illegal? No. That's why it's so important to dial 1-888 and NOT 1-800!
If you have cable or satellite you will not need a converter box come February 18th, 2009. You may want one in case the cable goes out. And you'll definitely need one if you only get your signal from an antenna and you don't have a newer digital t.v.
The government's giving away coupons to help with the cost. To get one call 1-888-DTV-2009... or check out this website for all you wanted to know and more about the digital conversion: