SPOILERS for the Smallville episode "Legion":
If only they hadn't said that the only way to stop Chloe was to kill her, it would have been a great episode. I loved the little touches - the sulfur pits of Tharr, the Levitz museum, the flight rings, the bio-electro-magnetic blast, even the "costumes".
She looked the part, but Alexz Johnson's portrayal of Saturn Girl was just totally flat.
I was really surprised that the Persuader was out so fast. And in a nod to the Post-52 Post-Crisis Lightning Saga Legion, he was a member of the xenophobic group (at least in spirit) that Earth Man and the rest of his group were. Another Johns callback - giving Clark the time-travel Legion flight ring, also last seen in L3W.
But for all the squee-age of the episode, the only part that didn't ring true was that the Legionnaires said that they only way to stop Brainiac was to kill it's host, Chloe. I know that that was purely for dramatic tension in the story, and I would have accepted it from anyone else, but it didn't work for me. And given that Brainiac was taken to the future at the end, and not seen in the intervening 1000 years, how did they know that they had to kill the host?
Newsarama explained the "Brainiac 5" comment at the end of the episode - Chloe was the 4th person to have been possessed by Brainiac on the show.
I did get goosebumps at the "Long Live the Legion" scene at the end.
Unfortunately I didn't find this Newsarama article until too late:
NRAMA: Counting the people who have been possessed by Brainiac on the show, wouldn’t that make Chloe the fourth one? Is she Brainiac 4? And what does that mean for the future?
GJ: That's an interesting question. I guess we'll find out.
...NRAMA: The episode also has the Persuader in it. Was that your idea, and why pick him as the Legion villain in this episode?
GJ: There was a villain from the future coming back, and I thought, more than almost anyone, he would look great on film. I love the Persuader, and I wanted to see him swinging around that Atomic Axe. I did a list of villains that could come back, but at the end of the day, Persuader was the best one.
...NRAMA: What's it like for Clark to hear about what's coming in his future?
GJ: They do tell him about the future, but they temper it because of their Legion Code and the rules of time travel. But Clark probably hears a little more than Cosmic Boy would want him to know. And that's a lot of fun. There's a couple things that the Legion mention specifically that will resonate with comics readers and fanboys -- because Legion members are essentially fanboys and fangirls themselves, coming back in time to meet their greatest idol. So they know a lot about him, but there are certain things they see now that don't necessarily match what they've come to know in the future. What they believe is probably more in line with what we know about Superman. So, on one hand, they’re fanboys looking at Smallville and going...”Uh, why aren’t you flying yet?”
NRAMA: While Smallville is clearly a different universe from the comic book DCU, we've seen in previews for this episode that there are a lot of nods toward the comic Legion just in the way they're dressed, with their rings, obviously, but even a few little touches on their costumes. Was that important for these characters?
GJ: That's something everybody on the show was really into, making sure that, while they weren't going to wear spandex, they still needed to be Legionnaires. So I said, well they've got to have the colors and they've got to have their symbols. You know, Cosmic Boy has to be black and purple, and the only symbol of sorts he has are the metal discs. But they work.
Here's what they're saying: