America's Got Talent, 8:30 p.m., NBC
Live shows! This is the part that always gets confusing me. The first 12 of the final 48 acts perform, and then almost everyone gets eliminated. It is a complicated way to get to the Top 10.
Monarchy: The Royal Family At Work, 9 p.m., PBS (check listings)
"A garden party at Buckingham Palace; Prince Charles and the Duchess of Cornwall get a tour from an organic farmer in Northumberland." Or as we like to call it, The Royal Family At 'Work'.
The Bachelorette, 8 p.m., ABC
Hometown dates! In which someone's either well-meaning or evil-minded sibling throws a wrench into the preceedings.