yes, telebrands, of the as seen on tv logo fame.and ben, vying for a tv slot with other inventors. >> the gotta potty. >> help me bring this invention to your kitchen. >> reporter: many have traveled from afar. >> checking in at the honolulu airport. >> i'm heading halfway across the country. >> do we have a deal? >> reporter: these inventors are here to pitch the next big idea. >> woke up feeling -- >> we didn't hardly sleep, it was like being a kid on christmas eve. >> reporter: and the stakes can be high. how much money have you poured into this so far? >> 250,000. >> reporter: we used to call them infomercials. a-spray your butt, even your privates. >> the ginsu is so sharp, it can cut through a tin can and still slice a tomato like this. >> the euro plug will help you with no embarrassing moments. >> call now within the next 20 minutes, because you know we can't do this all day. >> reporter: these days, it's called direct response marketing and even in this internet and tivo age, still a multi billion dollar a year business. to