Jeremy Pantsman often completely mangles the pronunciation of scientific terms yet sounds authoritative when he does it. At 7:28 he says "cawty-COSS-teroids" when it should be "cortico-STEROIDS".
He mangles the pronunciation of all sorts of foreign words and names as well... and he still sounds snooty when they don't know something he thinks they should know.
After nearly 27 years of deliberately mispronouncing foreign words and scientific terms think we've all just got to accept that Paxman is Paxman is Paxman.