TV highlights: March 18

Former ABC News anchor Jake Tapper begins his daytime reign on CNN as his news show, “The Lead” (CNN at 4 p.m.), kicks off on Monday afternoon. RETURNING SHOW: A dozen celebrities take up residence on a new edition of “Dancing With the Stars” (ABC at 8 p.m.), as Season 16 begins with a mix of competitors including singers (Wynonna Judd, Kellie Pickler), athletes (Dorothy Hamill, the Baltimore Ravens’ Jacoby Jones) and reality stars (“Bachelor” Sean Lowe...