Kevin Burke, co-author of "Saturday Morning Fever: Growing Up with Cartoon Culture", argues that the "consistency of thought" in the rumors of drug references has a basis, although his co-author and brother Timothy Burke, a history professor at Swarthmore College, insists "human beings are capable of achieving hallucinatory heights without chemical assistance." Contradicting his own position, Marty Krofft has neither admitted nor hinted in occasional interviews that the references were made knowingly; in one case, a writer reported that when pressed as to the connotation of "lids" in the title "Lidsville", "Well, maybe we just had a good sense of humor", Krofft said, laughing. His comments to another interviewer were more direct; in a "Times Union" profile whose author observed, "Watching the shows today, it's hard to imagine a show with more wink-and-nod allusions to pot culture, short of something featuring characters named Spliffy and Bong-O", Krofft conceded that the show's title had been an intentional marijuana reference, as had "Lidsville", but "that was just a prank to see if they could get them past clueless NBC executives".