This week on Pop Culture Happy Hour, NPR Monkey See’s Linda Holmes, Stephen Thompson, Trey Graham and Glen Weldon talk about whether it’s really possible to capture the magic of a first season later on in a series. What do shows do to reinvigorate themselves and last a long time? They’ll talk ‘Law and Order,’ ‘The Wire’ and ‘Mad Men,’ which returns this weekend. Next, they’ll discuss movie red flags. What indicates that a movie, particularly a sequel, won’t be good? All that, plus What’s Making Us Happy This Week.