“BET Awards 2012” (8 p.m., BET): Samuel L. Jackson is our host for the “BET

“BET Awards 2012” (8 p.m., BET): Samuel L. Jackson is our host for the “BET Awards 2012” from Los Angeles. Highlights include a tribute to Whitney Houston and performances by Chris Brown, D’Angelo, Usher and Nicki Minaj.

“Queen & Country” (8 p.m., PBS): Just ahead of the London Olympics comes “Queen & Country,” a four-part series that examines the customs surrounding the British monarchy. Part 1 focuses on “London: Royal City.”

“Weeds” (10 p.m., Showtime): The final season of “Weeds” picks up where we left off as our shooting victim is rushed to the hospital and the family tries to figure out who’s responsible. The Season 2 opener of “Episodes” follows.

TV listings, B8

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