So we all know that giving the word, or part of it, is a cuckoo/burble on any version of Pyramid. But for some reason, I thought of some rarely-explored wrinkles to that rule.
I remember a contestant once getting the cuckoo on "He has an 'S' on his chest" when describing "Superman", and Dick explaining that you're not allowed to give the first letter; conversely, another contestant was not cuckoo'd for reminding their teammate "No, it begins with [letter]" during a tiebreaker, since they'd already been spotted the first letter at the outset. Also, I remember a contestant getting the cuckoo for saying "It rhymes with [some other word]", followed by Dick explaining that it was an illegal clue.
Does anyone remember these or other similar wrinkles in main-game Pyramid rulings?