Dietland (9 p.m., AMC) — The two-hour premiere of a new Marti Noxon-produced series based on the bestselling book by Sarai Walker, following the ghost-writer for the editor of a top New York fashion magazine who struggles with self-image and sets out on a wildly complicated road to self-acceptance. It stars Joy Nash, Julianna Marguiles, Robin Weigert and Tamara Tunie.
Also on tonight . . .
So You Think You Can Dance (8 p.m., Fox) — Top dancers from around the country compete in the Season 15 premiere. Stephen “tWitch” Boss joins the judges.
The Crossing (10 p.m., ABC) — A homeless woman’s surprising connection to the crossing provides answers about what really happened at the threshold.