A number of networks, streamers and platforms have programming planned to celebrate Juneteenth National Independence Day, the federal holiday that commemorates the ending of slavery in the U.S. From specials to live events and specially curated movies, Juneteenth programming begins Tuesday and extends through the month. A rundown: ABC News: World News Tonight. Good Morning America and GMA3 will feature Opal Lee, the “grandmother of Juneteenth” who advocated for making the date a federal holiday, including a sitdown interview with DeMarco Morgan. Taraji P. Henson and Patti LaBelle celebrate Juneteenth on The View, with Kool & the Gang performing. Nightline...