Yeah, I've listened to about a million of their live recordings, which are all fine, nice, competent and all, but often a bit boring, but this one blew me away. Morten Harket's grunge outfit alone is a must-see, isn't it?
The dronegaze dark ale version you posted is perhaps just a wee bit too gritty for the kind of meat pie I cook these days, but yes, it's a fact that 'The Sun Always Shines on TV' is their best song. If you ask me, they've made three good songs: 'Take On Me', 'The Sun Always Shines on TV' and 'Hunting High and Low'. I can't name any other actually.
Ghost and A-ha? I must admit I hadn't thought about this, but perhaps Ghost have evolved into a sort of Mercyful Fate/A-ha hybrid?