Haley Bosselman editorIn today’s TV news roundup, NBC announced the date of the “Superstore” series finale, and National Geographic set the release date for “Genius: Aretha.” NBC’s “Superstore” will end on March 25 with a one-hour series finale at 8 p.m. The workplace comedy, executive produced by Justin Spitzer, Gabe Miller and Jonathan Green, follows the employees of “Cloud 9,” a fictional big-box store in St. Louis, Mo.