What to Watch on Tuesday: Visitors arrive to destroy mankind

V (8pm, ABC) - ABC "re-imagines" NBC's 80s sci-fi drama about carnivorous reptilian aliens known as "The Visitors" who invade Earth. The Visitors claim to be friendly, but their mission is to exterminate the human race. I'm not normally a big fan of sci-fi, but this show is very well-done. Starring Elizabeth Mitchell (Juliet from "Lost"), Scott Wolf, and Morris Chestnut.

Biggest Loser (8pm, NBC) - The contestants are now competing individually. In tonight's episode, they all travel to Washington DC for a public workout at the Washington Monument, for a salad at the White House, and then a weigh-in on the steps of the Lincoln Memorial. Couldn't NBC have used some of this travel budget to film another episode of "Trauma?"

So You Think You Can Dance (8pm, Fox) - One local dancer (Noelle) remains on the show but she was hobbling around on a bad leg last week, so who knows...

Kathy Griffin: Balls of Steel (9pm, Bravo) - In her latest stand-up show filmed at the San Diego Civic Center, Kathy Griffin dishes on Barbara Walters, the Gosselins, Levi Johnston, and Miley Cyrus.

Tabatha's Salon Takeover (10pm, Bravo) - Season two gets underway tonight, with Tabatha Coffey taking over a struggling salon in Chicago.