NBC’s “Parks and Recreation” is one of the most endlessly entertaining shows of the aughts, but it’s refreshing that the showrunners decided to shake up their formula with this fourth season. Benefiting enormously from the previously established dynamics among the disparate characters, the show wades into political territory, with Amy Poehler’s charming Leslie Knope running for office. It allows the show to sharpen its stakes a few times and occasionally foreshadows “Veep” through its casual use of political viciousness, and the change in tone is refreshing and re-energizing. Paul Rudd and Kathryn Hahn show up for a series of knockout guest appearances, with Hahn in particular stealing every scene she’s in.
Rating: ★★★★ (out of 5)