OK, I've checked my Person of Interest recording from Tuesday night and didn't notice the audio problem. I also checked the Hostages recording from Monday and found a Hyundai commercial in common with the Person of Interest recording. The commercial during the Hostages recording exhibited the issue while the one during Person of Interest did not. So, I'm cautiously optimistic that they've finally addressed the problem. I'm reserving judgement until after the shows tonight.
UPDATE: After watching Big Bang and checking Elementary last night, I believe the audio issue has been resolved.
Edited by terryfoster - 1/10/14 at 6:01am