On TV this Saturday: Buckingham Palace celebrates Queen Elizabeth II’s Platinum Jubilee, a Young & the Restless star searches for Hidden Gems and a hitwoman’s past comes back with a vengeance in Buried in Barstow. Here are eight programs to keep in your radar; all times are Eastern. (Also check out our weekly TVLine-Up of premieres and finales, plus our monthly streaming guide.)

Sipa USA via AP