Pride (in the name of love)

Dan Reynolds, lead singer for Imagine Dragons, fantasizes about a world in which his Mormon religion embraces gay rights in "Believer," a documentary from the eclectic Don Argott ("Batman & Bill," "The Art of the Steal"). You don't have to be a fan of his pop band to get swept up in Reynolds' mission, which culminates in a music festival staged in the shadows of the church's headquarters.

7 p.m., HBO

Man in the mirror

"Cultureshock," a five-part series that investigates little-known stories behind watershed moments in pop culture history, opens with a look at the final days of Michael Jackson. The docuseries, which will also look at the creation of the TV show "Freaks and Geeks," was supposed to have been overseen by Morgan Spurlock, but he stepped away from his production company last year after blogging about past sexual misdeeds.

8 p.m., A&E

Amazing grace

Opera singer Kim Jae-chang may not be the most cuddly or charming hero, but his commitment to bring music to the slums of India is downright touching. Watching "Singing With Angry Bird," a "POV" documentary that chronicles his work with a children's choir, means enduring some off-key versions of "Amazing Grace," but you'll savor every flat note.

10 p.m., TPT, Ch. 2

Neal Justin