Eva Longoria and George Lopez host the 2012 National Council of La Raza (NCLR) ALMA Awards (7 p.m., NBC), honoring the artistic achievements of Latinos in television. Look for the festivities to pause to recall some notable names lost in the past 12 months, including Lupe Ontiveros, an actress with more than a hundred films and TV shows in her credits. She died on July 26. Due to prevailing stereotypes in and out of Hollywood, many of her roles required her to play a maid.

Ontiveros was probably best known for her Emmy-nominated performance on “Desperate Housewives” as Gabrielle’s distrustful mother-in-law, Juanita. Over the years, she appeared in shows as varied as “Charlie’s Angels,” ”Eight Is Enough,” ”Hill Street Blues” and “Weeds,” in addition to popular movies, including “Selena” and ”As Good as It Gets.”

l What the heck is happening on “Haven” (9 p.m., Syfy) as it enters a third season? Audrey (Emily Rose) has been kidnapped. But by whom? I’ve watched the episode, which is supposed to shed light on the matter, and I still don’t have a clue. But that’s OK. Neither does Audrey.

Let’s just say that the path to this nonenlightenment travels through a kind of UFO adventure that may or may not be entirely in one character’s mind. Can somebody be abducted by aliens of his own making? If questions like these, as well as handsome scenery and a soap opera plot based on a Stephen King novel sound appealing, then this is the “Haven” for you.

• Television loves Las Vegas. Hits like “CSI,” bombs like “Viva Laughlin,” and the forthcoming series “Vegas” have all been set in and around the gambling mecca during the present day or its legendary past.

But is public television ready for its Vegas moment? Neil Patrick Harris hosts “From Dust to Dreams: Opening Night at the Smith Center for the Performing Arts” (8 p.m., PBS, check local listings). Look for performances by Willie Nelson, Jennifer Hudson, Brian Stokes Mitchell, Linda Eder, Savion Glover and Arturo Sandoval.

Tonight’s other highlights

• The imminent destruction of planet Earth offers the backdrop to the grimmest wedding scene ever captured on film in “Melancholia” (7 p.m., Showtime), director Lars von Trier’s elegant 2011 nonstop bummer of a movie, starring Kirsten Dunst.

• Kane seeks unorthodox treatment as the housing project chaos spills into the streets on “Boss” (8 p.m., Starz).