Hollywood already has deeply implanted in us a knee-jerk reflex when it comes to aliens: they're all evil. Even the ones who are good and are genuinely here to help us, they have deep character flaws (damn, dirty aliens, kill them all) and need to be herded under the wise and benevolent rule of the hewmans.
A dead giveaway is when they come with silly phrases like "We come in peace" and all that, that's when I set my phasers to kill and form and underground resistance cell in the basement of a church, because they don't understand god and all that.
Cliché aside, I liked the first episode of V, it shows promise, even though it's plain obvious how some characters will develop, especially the FBI agent's brat who wants to get on second base with the blonde reptile.
I imagine something along the lines of "No Mom, I don't believe that you were there and saw the Visitors murdering a bunch of people, your own partner being a reptilian under the soft, pink, human skin, trying to kill you. I believe what a group of hot aliens with perfect boobs tell me that they are of peace and want to know me better, which hopefully means they want to know me in a biblical way and not a culinary one."
I do admit a bias because I got to see both Inara and Wash in a single episode, but Firefly aside I'm looking forward to the next episode.
I hope it won't go the same way as Stargate Universe though, I really liked the pilot, and after that, week after week I've waited for another good episode, alas, to no avail. The reasons why it has such low ratings are quite a few and IO9 does a good job at explaining them. But I understood why I have such ambivalent feelings about SGU only during last week's episode when the scientists on Earth try and bring the people on Destiny back, but Rush is opposed and foils their attempt because of the "it's not safe" speech which translates into "the show would end". And when O'Neill says that Carter saved his life countless times with wacky plans, I realized that it was not the contrived, plot-advancing nature of the whole thing that bothered me, it was the fact that in SGU they take it just too damn serious and dark and gritty, and that gets really old really fast. Few shows can get away with that, Galactica being one of them, and I think it's the shift of expectations that bothers most people, they come to watch Stargate and get Galactica, and never the twain shall meet.
Sometimes I agree with Bender and "Kill all humans!". Which reminds me, we'll always have Futurama.