If you only hear one person and not the other, then either you're missing an audio cable (as Poggle Zig says), or the balance on your TV is turned all the way to the left or to the right. Roger is in the left speaker and Gerald's on the right.

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what do you teach your children about me?
what do you teach your little children about me?
pimp, thug, bling drug lord of the undergrounded kings
how can you be so sure i won't call down the rain?
what do you teach your little children about me?
you point your gun, wait, hide and run. i see it plain