“Dolly Parton’s Mountain Magic Christmas” (NBC, 8 pm.) may sound like a nolliday variety special, but it’s actually a movie musical about the making of such a special. Along the way, its stars will sing “9 to 5” and “I Will Always Love You” and introduce songs from friends Willie Nelson, Jimmy Fallon, Jimmie Allen, Billy Ray Cyrus and his daughter Miley Cyrus.

A completely different singer gets a bio documentary, metal singer Ronnie James Did in “DIO: Dreamers Never Die” (Showtime, 8 p.m.). 

The new film “Troll” (Netflix, streaming) isn’t animated; it’s a live action adventure film about a creature that awakens in the fjords and is threatening Oslo. 

The new film “The Territory” (National Geographic, 10 p.m.) looks at the efforts of indigenous people in Brazil against the encroachment of deforestation by farmers and illegal settlers. 

Not about the entertainment city in Missouri, the four-part “Branson” (HBO, 10 p.m.) is actually a documentary series about the entrepreneur and adventurer Richard Branson. 

The second season of the rebooted “Gossip Girl” (HBO Max, streaming) begins. 

“Wicked City” (ALLBLK, streaming) is a new series about five witches in Atlanta. It premieres alongside the new “Hush” (ALLBLK, streaming), a celebrity relationship fixer (Joyful Drake), who is threatened when a dead body is found.