InfoQ looks like they just recorded your typical conference presentation. Most of the videos I'm seeing are 2x the length I'm talking about, and are half vendor pitch.

Destroy all software is closer, but is kind of like one guy. Great for him! And for me on my flight here in a few minutes. But what I envision is more like training speakers to be concise and engaging yet informative. Kinda like how an editor helps a writer cut out things to make a better novel, but for tech talks. A tall order, I know.