Chris Matthews took part in Jon Stewart's benefit, "Night of Too Many Stars: America Comes Together for Autism Programs," which will air on Comedy Central this Sunday.
Matthews and Fox News' Bill O'Reilly participated in a political debate with just one rule: "Neither participant shall be permitted to speak without first filling their lungs with helium," instructed the moderator, CNN's John King. "The participants may continue to speak only if the helium has kept up the pitch of their voice."
The full debate can be seen on Sunday, October 21 at 8:00 p.m. on Comedy Central.