Unfortunately, the chances of Bob reading your post are as likely as getting struck by lightening. BUT, you may get the attention of his helpers. If you want to contact the show, get in touch with HomeWorld Media, or e-mail *** ****, or go to Ask Bob.
With that said, if I was you (which I'm not) but if I were, I'd send a nice letter with an outline of what you'd like to do. You'll need bids and contractor information for his 'people' to do research should he go with your house. Pictures and architectural drawings are most useful. In short, you need to show him how serious you are about your project. In other words, would your 'presentation' (whether it be this Post or one much more professional) show him you're doing the make-over anyway??? If you're looking for a freebie, it's not gonna happen. Also, using this Forum as a way to get Bob's attention is futile, IMHO. It's been over a year since we/'the board' got a hello from Bob. Spend some money with the hope that you MAY get selected.