Today on TV
Warehouse 13 (7 and 9 p.m., Syfy): Myka gets trapped in Lewis Carroll's mirror.
Big Brother 11 (8 p.m., Ch. 2): The housemates compete in the veto challenge.
America's Got Talent (8 p.m., Ch. 5): The final group of 10 performs; half will be eliminated on Wednesday.
Shaq vs. (8 p.m., Ch. 4): Shaquille challenges Misty May-Treanor and Kerri Walsh to a beach volleyball match. (A repeat airs at 7 p.m.)
Nova scienceNOW (8 p.m., Ch. 7): Segments include a report on the repair mission to the Hubble Space Telescope; earthquakes; and a link between brain structure and memory.
10 Things I Hate About You (9 p.m., ABC Family): Bianca drags Kat and Patrick to the fall dance.
P.O.V. (11 p.m., Ch. 7): "This Way Up" looks a the effects of the security wall constructed by Israel on the West Bank.
Rescue Me (11 p.m., FX): Things spin out of control in the season finale.