I have Verizon FIOS in Anne Arundel County, Maryland. Have two Series 2's working with STB's and blasters - no problems. My Series 3 with 2 cablecards is having the same problems listed above. No audio on 65, 66 & 81 and nothing at all on 71 (520) and 871. Just got off the phone with Verizon (2nd call about this). Got a good guy who said that it is a known issue and they are "working" on it. Verizon is pointing fingers at TiVo and TiVo is pointing back at Verizon. The tech pointed out that various providers around the US are having issues with different channels. ??? Probably doesn't help anyone but this is what I have so far.