When HBO’s Last Week Tonight With John Oliver is a repeat — last night, for instance — Oliver posts a new video on YouTube. which hopefully will become the model for all of late-night TV. Over the weekend, Oliver gave a call to action to end the tyranny of Pumpkin Spice Latte, “the drink that tastes like a candle,” contains no actual pumpkin, and which we have tolerated for years because “we like the fall.”