the mobile 500 alliance is here and john lawson is the executive director of that alliance. mr. lawson, what is the mobile 500? >> guest: it's a consortium of 47 broadcast companies. we own 430 television stations across the country, and we're dedicated to taking advantage of the technology breakthrough that allows us to use our over-the over-the-air television signal for mobile devices. >> host: what does that mean exactly? how would i use your device? >> guest: if your cell phone or your laptop is enabled with either an adapter or a built-in receiver, you can get live television over the air through that device without touching your data plan while you're making a phone call. it's way to get very high-end video to your device cheaply. so the broadcasters are watching free channels to be received over the air, and what we're demonstrating here today is the consumer product, an apple adapter that'll go to an ipad or iphone that allows you to receive-the-air television. it's got a dvr built into it. you can pause the programming, take it with you, and then we've got a solution th