It's great when that happens. Not naff, per se, but I've always found the vision of 'Allo 'Allo's Gruber being on Knots a little surreal. I think he even trips over the furniture at one point, but carries on like a trouper. Yes. You'd have to go a long way to top the ending of the series, but fortunately the ending to BTTCDS is satisfying enough. Now you mention it... yes. I hadn't really thought of it until you said. Yes - it's quite the role reversal. It's mindblowing to think of their relationship spanning six decades. That takes us back to before Victoria Principal was born(!) It's odd that I never really noticed the callbacks. The Loudest Word was the first Knots episode I watched and, as a seven year old, I wasn't familiar with the expression "piece of cake" and had to ask my Mum what it meant. So it's stuck in my mind as one of the more memorable pieces of dialogue. Incidentally, I've always thought of the expression as an Americanism (perhaps because of the Knots connection) but turns out it could well be a terribly British RAF thing.