Don't mind me. I've had more pots of coffee then the USDA Recommended Daily Allowance. Since I last posted, I knitted a Buick....
Seriously, though, I had some great examples, and I can't seem to find any of them at the moment. One or two of the sites I was having trouble with apparently just changed their URL strings. (!!)
Basically, what I'm running into now and again is where the extraction method is of no use, because the pertinent data is not anywhere on that page, so the RegEx can't reference it at all. (Crazy sites where the video ID might be 3678, but every number in the HTML of the page is 3677.

) But often, the data I need is located in a pop-up window, a completely different page. If I could only get the RegEx to scan that page I could nab it.
Sometimes, I'm out of luck because the entirety of the page is generated by javascript, with nary a video ID to be found. I don't think much can be done about that.
Hey, like I said, I'm 90% caffeine at the moment. Enjoy your vacation.