This episode is all about the paradox of the “happiness chimney,” where, as you’ll recall, you were put during sleep-away camp when you got out of hand. Remember? And you had to collect your own kindling! As you sink into nightmarish nostalgia, enjoy two extended segments. First there’s the start of a new British female buddy cop detective series, “Deirdre and Sleestak.” And no, “Sleestak” isn’t Welsh, but reptilian, from another dimension, of course. Next is the fourth in the series, “A Hard Rowe to Hoe, with Nicholas Rowe.” Yes, the professionally disappointed star of “Young Sherlock Holmes,” from the 1980s, is back, this time in a strange interview with a former librarian, who recounts the repellent misdeeds of most library patrons. Does Nicholas Rowe get another chance to play Sherlock? Nope. It’s another trip to the happiness chimney for him!