So you've heard the buzz, your interest is tickled and you're ready to take the plunge into a new show. But, you don't have time to catch up on multiple seasons?

Have no fear, AOL TV is here. We'll be spotlighting five episodes from some of the best scripted comedies and dramas on TV that you need to see before jumping into the new season this fall.

Up now? 'Fringe.'

Starring Anna Torv as FBI Agent Olivia Dunham, 'Fringe' is a sci-fi FBI drama set in the world of fringe science. But before you run screaming from the room, just know that it's much more than an 'X Files' rip-off.

Created by J.J. Abrams, Alex Kurtzman and Roberto Orci, 'Fringe' is about love, loss and redemption. It's smart, funny, challenging and moving.

Agent Dunham, eccentric scientist Walter Bishop (John Noble) and his "International Man of Mystery"-type son Peter (Joshua Jackson) investigate seemingly unexplainable cases. Why? it seems that some, at least, of these cases may be the result of Walter opening the door to an alternate universe many years before, which turned out to have disastrous consequences for that world.

They are assisted by Dunham's boss, Agent Broyles (Lance Reddick), Junior Agent Astrid Farnsworth (Jasika Nicole) and -- possibly evil -- Nina Sharp (Blair Brown), head of corporate behemoth Massive Dynamic.

The series enters its fourth season on Friday September 23rd, at 9PM ET on Fox. Interested in tuning in? These are five episodes you need to watch before diving head-first into the critically acclaimed sci-fi drama.

1) Pilot (Season 1, Episode 1, 2008)
Why you should watch it: One of the most expensive pilots ever made, it kicks off with an 'X Files' type case, whereby an entire planeload of people basically melt. Viewers are introduced to all the major characters and get an overview of the important things in 'Fringe': Drugs, daffy science, conspiracy theories, Massive Dynamic and Gene the cow. And, hey: Just because you're dead it doesn't mean you can't be pulled in for questioning.
2)'There's More Than One of Everything' (Season 1, Episode 20, 2009)
Why you should watch it: This episode provides a lot of crucial information laying the foundations for future seasons. The title says it all: There are at least two of everything, uncluding universes. Walter's old partner, William Bell (Leonard Nimoy), turns out to be alive and well in a parallel universe, and to underline how similar yet diffferent things are, the Twin Towers are still standing "over there."
3) 'Peter' (Season 2, Episode 16, 2010)
Why you should watch it: This episode, which finally assembled all the pieces to Peter's backstory, was hailed by critics as the best episode so far. We find out why Walter did what he did, and the devastating consequences of his actions, both for the people concerned, and the wider world(s). A fantastic, moving piece of classic drama.
4)'Entrada' (Season 3, Episode 8, 2010)
Why you should watch it: Peter and Fauxlivia get it on. Olivia breaks out of jail "over there" and swaps places with Fauxlivia, but a major character dies horribly in the process. We discover that the people "over there" are not warmongers, they're simply trying to survive. And we see that The Boss gets his due in the alternate universe: There, Penn Station in Newark, NJ is called Springsteen Station.
5) 'Lysergic Acid Diethylamide' (Season 3, Episode 19)
Why you should watch it: Co-written by Oscar-winner Akiva Goldsman, this is classic 'Fringe.' Bizarre, funny, unexpected and deeply moving. Eighteen minutes in, it all becomes animated as we take a trip inside Olivia's head with Peter, Walter and "Belly." Amongst all the tripping -- Broyles on LSD is hilarious -- and weirdness, there is real, gut-wrenching emotion. Olivia is forced to confront her fears and discovers that she is, indeed, "special" and very, very strong.

'Fringe' Season 4 premieres Fri., Sept. 23 at 9PM ET on Fox.