At 5:52 you mention it's possible to lose signal or have issues if too many people are connected to the DME. I'd never really thought about how DME works, but figured it was more of a passive broadcast. (I'm not a real-life pilot). Reading more now. Fascinating!
If you want to pretend to be English at any time, simply pronounce ‘Norwich’ as “Norridge” (don’t drag out the O). Oh and I loved doing radio nav in my PPL, problem with the UK is it’s not big enough and has not many VORs to be interesting.