Bcs, and feel free to call me wrong ... but i was fighting with very strong urge to scream "Liars!" at my monitor ... especialy since the start. :-/
"Liar" is a bit of a loaded word. It carries with it a pejorative connotation. On top of that, it's also slightly old fashioned, if not completely has-been. Nowadays, the type of speech delivered by the two folks in the video would rather be qualified as marketting, or advertising.