COMEDY. The funniest comedy on television — and in its last two seasons, consistently one of the best series on TV, period — returns as Louie breaks off a relationship. It's an awkward, painful situation for anyone, but in the hands of Louis C.K., the series' writer-director-star, the confrontation also plays out as a poignant life lesson. And, of course, it's hilarious.
Season premiere, 10:30 p.m., FX
DRAMA. Ah, bureaucracy. If we don't laugh at the hoops we're made to jump through, we'd be caught up in red tape crying. There's plenty to chuckle at in this mockumentary about the organizers in charge of putting on the Summer Olympics in London (the team includes "Downton Abbey" star Hugh Bonneville). But their efforts are hardly gold medal worthy when, in tonight's premiere, they realize their grand countdown clock to the Games actually counts up.
Miniseries premiere, 9 p.m., BBC America
DRAMA. This brilliant little slice of high school life is back. Now that Jenna knows who wrote that letter that sent her into an emotional tailspin at the very beginning of the series — her mom — Season 2 picks up with the aftermath as mother and daughter examine their fractured relationship.
Season premiere, 10:30 p.m., MTV