Scott,
Keep listening to extra and eventually you'll hear and understand it all, word for word. It won't take long, just watch an episode a day and repeat the cycle.
I guarantee it will work because of what you already know.
You have the visual context as well as the auditory speech in the program, and the characters evolve in the 13 episodes.
As I said, the actors are far more talented than the script, and one thing that really shines is how they can slow down the speech and still sound natural.
Lucretia, a veritable lunatic who is lola's tv news boss, is always applying her makeup or looking in a hand mirror, even while berating lola.
Except for when she (lucretia) is shouting in reporter sam's earpiece (being sam's tv news boss as well) and having an almost orgasmic experience when sam's girlfriend ana smacks sam with a placard at a protest on live tv.
Lola, a perpetually angry, rather bitchy shouter who wants to be rich is actually a very nice person on the inside.
Ana is a sweet, insecure young woman, who's character evolves quite a bit around the episode where her long hair became short.
Except for the last two episodes, I really like her character.
Pablo es pablo, as lola says. The actor plays the role of goofy idiot neighbor very well. He does some funny visual gags. And, he's agile enough he could be a professional dancer, a gymnist or a martial artist in real life.
In one episode he busts a move, that while it's a gag, quite impresses me. The average guy in the streets isn't pulling that one off. The low stance, gliding feet on the floor resembles shotokan to me.
As well, he shows instantanious, fast movement in some other episodes that untrained people usually don't have. It's brief, but you see it.
The actor playing sam is interesting. The character, from america, speaks his limited spanish with a noticable british accent for the first couple episodes or so. This is most pronounced in the scene in the first episode where sam mistakes pablo for being a bellboy and wants pablo to fetch his suitcases from downstairs.
The uk english accent while sam is speaking spanish isn't so noticable in subsequent episodes, and in the last episode he sounds liké an american when he's speaking english to his mother - who doesn't sound like an american at all. She says “Barceloner” of all things. In her speaking mangled spanish it's a totaly destroyed “como te lahmers” for “cómo te llamas.”
Which could mean all sorts of things, perhaps including something about licking.
I believe the actor playing sam is from the netherlands and speaks several languages. He appears in the french version of extra.
The first three episodes are full of more cheese than the whole state of wisconsin, the english vacation and fanáticos de futbol episodes are almost as bad.
And, if in real life a woman gave me the passive aggressive silent treatment for days like in episode 12 or shook a knife in my face like in episode 13 she'd be out of my orbit faster than shit goes through a goose.
But, you can like the actors and extra will help you learn spanish.
As an addendum, I hope the actors went on to greater things.