First off, let me say I love the show, I've been a long time Ben Heck fan (bought his book 5 years ago) and recently found the show. I love the format, the details and the excitement being presented, it's very encouraging to a novice and inspiring as well. My idea would be a build that is more "finished" rather than just a quick build, like a more long term build but with more updates/more detail than currently shown (maybe like a 5-10 minute segment in the show detailing updates on the bigger build, like the pinball stuff but more meaty/more details). Also, another idea I had was if Ben could revisit a previous build and improve/expand upon it, that would be neat to see. Last idea, I promise lol, it would be awesome if you made an episode showing basics, or good sources (magazines, forums, books, even classes to take) to jump start a person into makerdom. All said, the show is wonderful as is, the only complaint is that it's only on once a week!!
*Edit* one more idea! Would love to see more salvage type videos, what useful stuff can you get from commonly thrown away electronics and phones