Wherefore art thou

In the finale of “Still Star-Crossed,” a “shocking discovery” is revealed. But it’s probably not shocking enough to win this low-rated sequel to “Romeo and Juliet” another season.

9 p.m. Saturday, KSTP, Ch. 5

That’s the way it was

The Smithsonian Channel has again made creative use of recycling news footage for “The Lost Tapes: Son of Sam,” a you-are-there documentary that relies almost entirely on newscasts from 1976 and ’77, a period in which David Berkowitz held nearly all of New York City hostage with his random murder spree. If this approach continues to be effective, narrators may become an endangered species.

8 p.m. Sunday, Smithsonian

On the prowl

As “Teen Wolf” kicks off its farewell season, we’re definitely concerned about our favorite residents of Beacon Hills. Seems that an army is being assembled to hunt down Scott and his pack.

7 p.m. Sunday, MTV