For many moviegoers, franchise fever is an ever-widening addiction. How can you make an ingenious

For many moviegoers, franchise fever is an ever-widening addiction. How can you make an ingenious follow-up film that escalates the appeal of a popular franchise? Here are ingredients.

v Listen to the pros: “Each time has to be for the first time,” actor Patrick Stewart said.

v Not every old hit works: Audiences didn’t see the point of last year’s “Point Break,” “Poltergeist,” “Pan” or “Victor Frankenstein.” Nostalgia reaches only so far.

v Don’t veer off the main road: Fresh perspectives and new characters in “Mad Max: Fury Road,” “Jurassic World” and “The Force Awakens” are sequels on a common story line.

v Great villain enhances a character-driven feature: “Lord of the Rings: The Two Towers” makes an unforgettable character out of Gollum.The Joker does the same in “The Dark Knight.”

v Hire talented young turks: “Captain America: Civil War” is directed by the Russo brothers, Emmy winners for “Arrested Development.”

“Janis, Little Girl Blue – American Masters” (8 p.m., PBS): The film is a compelling profile of rock singer Janis Joplin and features letters she wrote her parents, archival footage and interviews with artists influenced by Joplin.

“Person of Interest” (10 p.m., CBS): The show returns for its final season. Reese (Jim Caviezel) and Finch (Michael Emerson) try to save the Machine’s source code before it deteriorates beyond repair.