RCA PVR Will Use Free Guide+ Program Guide
Regardless of whether or not it's stealing legally (I believe it's not) or ethically (Probably not), it is identical to stealing as far as Zap2it's business model is concerned. This doesn't mean you're going to get busted for scraping it without looking at the ads, nor does it mean that you should feel bad about it. All it means is Zap2it becomes more likely to go out of business every time you go around its ads. This is all the parent was saying (on this point, anyway). Don't expect Zap2it to last forever if you use it without seeing its ads.
Maybe the solution is to make the scraper fake a click-through on the ads every once in a while, so that the advertisers still pay them...'course, then you're screwing the advertisers, but there are more of them, and they probably have more money.