A *huge* thank you, DocBrown! Once I had that little bugger uncovered, the rest was a snap. I agree with you that this should've been part of the walk-through. In retrospect, it's rather surprising how cursory my walk-through was. He was more focused on talking about programming the television than he was on anything else, and my being a complete neophyte, I simply didn't even know what to ask!
Seriously- my thanks. I will sleep much better tonight.