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What happened on this week's 'It's Always Sunny in Philadelphia Episode' episode, 'The D.E.N.N.I.S. System' -- in 100 words or less.

When Dennis unveils his foolproof system for cracking and sacking women, he discovers that Mac and Frank have their own less-sophisticated systems for picking up his scraps.

Charlie takes what he learned and immediately goes over to the waitresses to break her sink, so that he can fix it and win her over. Dee becomes paranoid that her boyfriend is using the system on her, so she begins to sabotage her relationship.

The gang gets together to fix it all at a carnival, but Frank accuses Dennis of giving the girl AIDS and Dee gets stabbed, proving ... that they're all losers.

When you think Christmas cheer, you think of the gang from 'It's Always Sunny in Philadelphia,' right? Right.

Which is why their new DVD release, 'A Very Sunny Christmas,' is the perfect stocking stuffer ... especially if the people on your list land on the naughty side of the spectrum, like Dennis Reynolds and the actor who plays him, Glenn Howerton. "Yeah -- we're both naughty dudes."

Filled with full-frontal elf nudity, violence, blood, a 'Christmas Carol'-style lesson for Dennis and Dee's grinch of a father and even some claymation, the special truly has everything a 'Sunny' superfan could ask for. And, of course, there's the added treat of seeing Danny DeVito naked. "Let me tell you something about Danny DeVito getting naked," Kaitlin Olson dishes. "He falls, and things spread open ... it was really amazing and I'm excited to share that with everyone."

So what would the gang ask Santa for? We got them to share some of that, as well as their own personal Christmas wishes. Like Danny DeVito's plea for Croc underwear, and the gang's thoughts on the wild success of the d*ck towel, a product that Sweet Dee herself tested out while sunbathing all summer. (You're welcome for that mental picture.)

Watch our 'Sunny' cast interviews and a very special exclusive clip right here ...

Halloween's almost here, so we're giving tips on how to dress like your favorite TV characters.

The Costume: The Nightman, The Dayman, Greenman, The Princess Waitress and Charlie's Yellow Proposal Tux from
'It's Always Sunny in Philadelphia'

What You'll Need:
For Nightman – A black karate uniform, a very generous wearing of eyeliner, slicked back hair and some sweet karate moves.

For Dayman – He is the fighter of The Nightman, champion of the sun, a master of karate and friendship for everyone. To convey that, it's all about a gray Spandex jumpsuit with a sash and a dance belt, or, if you want Dayman's bellbottom look, Spandex pants and long-sleeved top. And don't be afraid to expose a little chest hair ... that's how Dayman rolls.

'30 Rock' and 'Mad Men' dominate the Emmys (again), while the show sees its best audience in three years.

See more of today's top TV headlines after the jump.

I don't really know if it's always sunny in Philadelphia ... never been. But I have been to the set of FX's cult hit 'It's Always Sunny in Philadelphia,' and that was, well, awesome.

Tucked away in a back corner soundstage on the Fox lot in Los Angeles, the 'Sunny' gang hatches their half-baked schemes at Paddy's Pub and hangs out in Charlie's filthy apartment (it's Hollywood, people -- that filth is fake). They also tend to spill show secrets ... if you ask them nicely.

We've got the scoop on September's choice TV-to-DVD releases: We'll let you know when you should dole out your hard-earned dollars, and when a simple addition to your Netflix queue will suffice. -- By Janine LoGelfo

'No. 1 Ladies' Detective Agency' (The Complete First Season) - HBO's series about a strong Botswana woman based on the popular Alexander McCall books has yet to be renewed for a second season -- while that mystery is being solved, familiarize yourself with this gem of a show. Jill Scott's portrayal of the iconic character Mma Ramostwe is like a breath of fresh air, and the show is surprisingly clean for HBO's sensibilities, featuring no profanity, explicit violence or sex throughout the whole season.
Buy or Netflix? Netflix (available Sept. 1)

Danny DeVito's gone and done it again -- or has he? The actor is denying claims that he was drunk during an interview on a local Philadelphia morning show to promote his raunchy F/X comedy 'It's Always Sunny in Philadelphia.'

While on camera, DeVito repeatedly burped and made lewd comments toward the female reporter who was interviewing him. His bizarre behavior prompted her to ask if he was drunk, since he had just been filming a scene in which he was swigging from a beer can. He claimed there was no real alcohol on the set.

'It's Always Sunny in Philadelphia'
(10PM, FX) 4th season finale
The Paddy's Pub gang is ending the season on a high note ... actually, a musical note, as Charlie's song 'Night Man' -- that disturbing little ditty he penned in season three's 'Sweet Dee Is Dating a Retarded Person' -- becomes a musical.

Dennis, Dee, Mac and Frank help Charlie stage his rock opera, a production which, without recalling all of the tune's lyrics, seems to be about one -- again, disturbing -- thing, but, Charlie insists, is about something altogether dfferent.

We'd love to elaborate more, but this is a family Website. Suffice it to say, it's Charlie and company at their politically incorrect best.

'30 Rock'
(9:30PM, NBC)
It's only the second episode of the season, but Liz Lemon is already facing bigger issues than Tracy and Jenna arguing about the profits of Tracy's pornographic videogame ('Goregasm: The Legend of the Dong-Slayer').

Liz has gotten the dreaded jury duty notice, and she's willing to do nothing less than fly to Chicago to get out of it. But she gets a surprise on the way back when The Big O herself -- guest star Oprah Winfrey, playing Oprah Winfrey -- is sitting next to her on the plane.

Liz sees the chance meeting as her chance to get some of Oprah's self-empowering advice on her life. And Oprah sees Liz as, well, a bit of a whacko.

'30 Rock'
(9:30PM, NBC) 3rd season premiere
If '30 Rock's' second-consecutive Outstanding Comedy Series Emmy brings in new viewers, this episode will be an intro to the show at its best.

Liz Lemon (Outstanding Lead Actress in a Comedy Series Tina Fey) has decided there's room to fill in her life after an 80-hour work week, so she's trying to adopt a baby.

But first, she has to impress adoption agent Bev (guest star Megan Mullally), who stops by the office just as Tracy is celebrating the success of his pornographic video game and Jack (Outstanding Lead Actor in a Comedy Series Alec Baldwin) may have to sleep with Geiss's soap opera addict, Dora underpants-wearing, Mark Wahlberg-lovin' daughter to get his GE job back.