A TV converter box is the set top box that comes with a cable subscription, and it takes the signal coming in through the copper cable and turns it into something the TV can understand. He would use the converter box to switch channels. The internet box is a bit different, and would give him the cable internet access. Often times companies will combine the two and offer a converter box and a cable modem. He would get more channels on the hybrid cable TV and internet box, but he'd have to pay for the internet access to use that.
David's cable service went out, so he got the cable company to come out and fix it. Now they're suddenly requiring every single TV have its own set-top box, and they'll charge $7 a month for each one. Leo says that when we went digital several years ago, the federal government opened the door for this kind of shake down.