This is becoming a habit...
Lozzo 87 & JonathanB: The video is on the NATS careers website - something like 'Life at the College'. You haven't missed anything if you watch it online.
Lozzo87: The personality questionnaire is now online and only sent to candidates who reach a certain level in their Stage 1 tests held at either Glasgow, Manchester or London.
Marco888: You get a choice of locations for Stage 3 but it may involve waiting a while until dates come up on the system. Choices are London, Manchester, Swanwick and Glasgow. I think there might be a couple of other possibilities, but someone else might be able to remember those ones!