I'm sure I said earlier in the thread The Dick Van Dyke Show is my favorite comedy, in fact my pick for best TV show ever. It's so well done. I thought maybe Game of Thrones might beat it out, but the ending ruined it. I've always thought that, even as a kid, when I used to take such matters very seriously 🙂
I Googled "blue stoves 60s" and some came up (and refrigerators), they looked the same shade as the Petrie's. There were also some dark blue ones. We had the avocado green stove and fridge back in the 70s.