Very cool approach with the Homeshow Daily and Home Coach. I love that sort of thing - sometimes I'll spend a lazy Saturday watching This Old House, New Yankee Workshop, Ask This Old House, etc.
For the last few years I have lived with a building contractor and have learned a LOT. I can think of a gazillion things. Immediately what comes to mind, though, is how to know WHEN you need a contractor/advice. Example: my son and his friends tore off an old screen porch and built a deck. Within a year it was a disaster. My friend the contractor took a look and went through the basics like minimum roof overhang to prevent splashback, nail's width space between the decking boards to prevent pooling and allow drainage, underdeck land grading for drainage, figuring size to maximize wood usage, slope degree away from the house, etc. My son's next effort, with some of the same friends and a more experienced carpenter, was a success.
I've learned how to do sheetrock repair, find studs, adjust cabinet doors, hang cabinets, common wood lengths and widths (and terminology like 5/4), more I can't recall. Another sticky thing in this county, at least, is when you need permits, how to get them, when and what order you need inspections and how to call them in, etc. I learned that Murphy's Oil Soap contains no oil, but if it did, not to use it on my polyurethane finish if I ever want to have the floor refinished. Replacing old vinyl, installing a toilet. Using nail guns. What type and size screw to use.
Don't see how you could run out of ideas. The DYI websites are chock full of tips and tricks you could demonstrate.
Not to worry about the female audience. Generalization: I've found women read the instructions and follow advice more often than men, who believe they were born to build and don't need no stinkin' manual!
Good luck. You have a relaxed and confident camera presence. Much better, I think, than arrogant Bob Vila, who rarely picked up a hammer, never got dirty, and treated Norm like a slave ;)