<<Feel free to produce the video of Palin chanting "Drill, Baby, Drill" at the GOP Convention. Prove to everyone that you're right.>>
I don't have to prove it was said during the GOP Convention, and IMHO neither does XO, because where she said it is an absolutely irrelevant detail.
I will concede that it's barely possible, as plane suggested, that I saw Tina Fey saying the words and that this transformed in my memory over time to a memory of Palin saying it. Fey did a remarkable imitation of Sarah Palin.
At this point, however, I have a clear and distinct memory of Sarah Palin saying those words. So does XO, which reinforces my opinion that she spoke the words. Whether or not XO is right as to time and place is immaterial, IMHO, since that's an irrelevant detail.
Your inability to find any video of the event is some small evidence of its never having occurred, but not very convincing evidence. Even assuming that your on-line research skills are better than average and that you gave it a decent effort (something I have no knowledge of either way) your failure to find the tape verifying what both XO and I recall can be explained in several plausible ways, either the source tape being altered and no original copies being available, or a copy being altered and the source and copies of the source then becoming unavailable, or the tape existing and you being unable to locate it, or no tape of the event ever having been preserved and made available on-line or even (God forbid!) both plane and I being mistaken.
What I find laughable in your reasoning is that you proceed from premise to conclusion as if your one piece of evidence (that YOU have not found the tape) permitted only one conclusion. That's pathetic, frankly. You really should know better.