By Robert Lloyd, Los Angeles Times (TNS) I imagine that when you imagine a TV critic, you picture some hard-boiled, crusty, even heartless type. But I have always been a sensitive, delicate, please-leave-the-light-on sort of fellow. So Halloween is a holiday I greet with mixed emotions. I am fine with its brighter expressions — candy, pumpkins, cute costumes on little children, “It’s Halloween” by the Shaggs, all that.