The 2012 fall TV slate is so full of great, can't-miss programming that it's often difficult to plan your at-home viewing schedule to maximize your free time and DVR space.

Take Thursday night's (October 11) action-packed lineup of season premieres, for example: New episodes of "It's Always Sunny in Philadelphia," "The League" and "The Vampire Diaries" are all coming your way. What's a responsible TV watcher to do with so many great shows to watch and so little recording space?

MTV News was lucky enough to attend the premiere of the FX comedies recently, and we posed this critical question to both casts. Unsurprisingly, they imparted some very thoughtful wisdom on the subject.

"I know a lot of people who watch MTV love 'The Vampire Diaries.' Me too," "League" star Paul Scheer said. "I worked with Steven McQueen on 'Piranha 3D' — we go way back, acting-wise — but I'm going to tell all the fans of 'Vampire Diaries' right now: You gotta watch 'The League' because we are all vampires; we just don't talk about it. We don't make a big deal out of it. 'Vampire Diaries' [stars] are telling everybody, 'We're secret vampires. We're killing people left and right, you just don't see it.' We're not bragging, basically."

The CW soap found a sympathetic supporter in "Sunny" star Charlie Day.

"I don't want to deprive anyone of their vampires. There's not enough vampire material out there, so please, DVR that vampire stuff, because it's important stuff," he said. "It's the human condition. It lets us know about ourselves. But it's not all teeth and fangs and abs."

Day's "Sunny" co-stars Rob McElhenney and Glenn Howerton touted their show's re-watch-ability as their top selling point, despite not being totally clear about the current story line on "Vampire Diaries."

"I think you probably only watch that once and you watch our show multiple times," Howerton said. "Right? Or you don't watch that at all, and you only watch ours."

"How many vampires can we have on television?" McElhenney asked rhetorically.

"But these guys have a diary, so it's more accurate to what actually happened," Howerton guessed.

"Is it like Anne Frank?" McElhenney asked.

"I don't know who that is," Howerton deadpanned. "Did she die in a car crash or something?"

Finally, leave it to "League" star Nick Kroll to get down and dirty (and violent) with the debate.

"I like them, but I'll still fight them. Look at them: None of them are eating, even the men," Kroll said. "There are no carbs in their diet. I will sit on them. I will sit on all the 'Vampire Diaries' [stars], and they can bite my tush and try to suck the blood out, but I will still suffocate them before the evening is out.

"Vampire Diaries, I'll f---ing wreck you," he added with joking intensity. "The dude with the jaw, the girls — I'll take you all down."