I'm sure someone will respond... but just a small point. EGLL "Rad" is not at the tower any more; it's been part of London Terminal Control for about 15 years and now resides at the seaside near Swanwick. It therefore depends what you and your wife want to see - planes or radar..
PS I just love your PPrune handle. When I was in the job R22s were commonly referred to as strimmers!!! :-))