The Mindy Project (9:30pm, Fox) - They’re a couple now. Finally. In the Season 3 premiere, Mindy and Danny try to find a balance between work and romance. Meanwhile, Morgan’s cousin Lou ( Rob Mcelhenny) visits the office, and Jeremy organizes a charity event with Peter’s girlfriend.
Also on tonight . . .
The Roosevelts: An Intimate History (8pm, UNC-TV) - In part three of Ken Burns’ 14-hour documentary series, Teddy’s progressive crusade splits the Republican party. And Franklin, who supported Woodrow Wilson in the 1912 election, serves as his assistant secretary of the navy during WWI. Meanwhile, Franklin’s marriage to Eleanor is transformed into a purely political partnership after she learns of his involvement with another woman. Other installments air over the next four nights, ending on Sept. 20.
Dancing with the Stars (8pm, ABC) - The first elimination of the season.
New Girl (9pm, Fox) - In the Season 4 premiere, Jess attends a wedding with the guys and makes a pact for each of them to hook up with someone by the end of the night. As the evening progresses, Jess competes with another woman for the best man’s attentions. Jessica Biel guest stars.
Finding Carter (10pm, MTV) - Carter uncovers dark secrets in the Season 1 finale. Meanwhile, Max and Taylor’s relationship reaches its breaking point.
Sons of Anarchy (10pm, FX) - SAMCRO solicits help from another charter to finish a job.