Saturday night viewing tip

Metallica: Some Kind of Monster (8 p.m. Central on VH1 Classic) is a mesmerizing documentary that’s all the more amazing for being more or less an accident. Directors Joe Berlinger and Bruce Sinofsky (Brother's Keeper, Paradise Lost: The Child Murders at Robin Hood Hills) were hired to make a promotional film about Metallica as the heavy-metal band worked on their 2003 "St. Anger" CD. But while the filmmakers were tightly focused on the often contentious musicians, they were able to witness and record two years of emotional upheavals, internecine conflicts and on-again, off-again group therapy sessions. Fascinating stuff, even if your musical tastes run more toward bluegrass or grand opera.