WATCH: A sneak peek of all-new FAMILY GUY - "The Old Man and the Big 'C'"

FAMILY GUY: Brian discovers that Carter Pewterschmidt's pharmaceutical company is withholding the cure for cancer from the public in the all-new "The Old Man and the Big 'C'" episode of FAMILY GUY airing Sunday, October 21 (9:00-9:30 PM) on FOX 50. FAMILY GUY™ and © 2012 TCFFC ALL RIGHTS RESERVED.

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By FOX50.com

Story Created: Oct 19, 2012 at 5:59 PM EDT

Story Updated: Nov 1, 2012 at 11:13 AM EDT

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When Brian discovers that Carter Pewterschmidt’s pharmaceutical company is withholding the cure for cancer from the public in order to gain more profit, he and Stewie plot to expose the big secret that could change the world.

Meanwhile, Quagmire reveals a hair-raising secret of his own in the all-new “The Old Man and the Big ‘C’” episode of FAMILY GUY airing Sunday, Nov. 4 (9:00-9:30 PM) on FOX 50. (FG-922) (TV-14 D, L, S, V)

Voice Cast: Seth MacFarlane as Peter Griffin, Stewie Griffin, Brian Griffin, Carter Pewterschmidt and Quagmire; Alex Borstein as Lois Griffin; Seth Green as Chris Griffin; Mila Kunis as Meg; Mike Henry as Cleveland Brown.

BONUS CLIP: Everyone is shocked to learn that Quagmire is really bald. Now that his secret's out, he's acting like the bald man he is.