I have lost channels above basic locals (Comedy central, Cartoon Network, Disney, USA) on Comcast cable in Seattle. We noticed that Comedy Central had really deteriorated prior (pixelation) to disappearing altogether. About the time we lost the channels we had been experiencing very slow internet connections. Comcast sent techs out, ID'd a signal issue ("Hot" too of a strong signal). Techs made external adjustments somewhere along the street, replaced our cable modem w/ a DOCSIS 3.0 model, and replaced the line from the pole into our house. We were out of town for a few days right after this. Came back and realized that we had lost the "next tier" channels just above" locals". We're on an economy digital package so don't get any premium (HBO, etc) or HD channels except local HD's, but the comedy cenral, toon network, disney, etc... are digital, but not High Def. Cable comes into the house, goes to a splitter, one cable goes to the cable modem the other goes directly into ourTivo HD after a run of ~30 ft. Details on our unit: Series 3 TCD652160 TSN 652-0101-XXXXXXXXX SW 11.0k-01-2-652 157 Hrs HD, 1367 SD -- 1TB drive The HD has been in use since 10/2009 1 Motorola Multistream CableCard, replaced 8/4/13, previous card in use since activation Multiple calls to Comcast to reset the Cable Card, multiple calls to Tivo tech support w/ no resolution. I went to a Comcast svc center and swapped out the Cable Card. Reviewing DVR Diagnostics w/ Tivo tech. support showed signal strength of 100 and SNR of 36 DB on the channels we were receiving. Tivo suggested we try a splitter or an attenuator to bring signal back in spec. Tried a 3, 6, 10 DB attenuator. The 3 brings signal back in spec for strength and SNR. the 6 & 10 seemed to bring strength down too much. Have rebooted the Tivo and re-run guided setup as well. Last call to Tivo CableCard tech support left of w/ no answer, but presumption that a tuner was broken w/ an offer to get a refurb premiere and transfer of lifetime service for ~$350. Asked the tech why both tuners would work for locals & CNN (44 out here) but not the other channels if "one tuner" was broken. He didn't have an answer for that. Seems curious that this unit has run flawlessly for almost 4 years, then flakes out at the same time Comcast acknowledges a signal issue w/ our service. Coincidence or could the "hot signal" damage the Tivo's components? Looking for input from the community on best next step: 1) Get Comcast out here to try different CableCards 2) Take Tivo up on the transfer option - see if I can get the transfer to a new Roamio Tivo instead of Premiere 3) Other troubleshooting I haven't done yet ???? - have seen threads that a bad power supply could cause this kind of issue, will look into the capacitors on the PSU in this unit. DVR Diagnostics from tonight: Tuner 0 Channel 5 (NBC local) Freq. 165000KHz Modulation QAM 256 Conn RF2 Cable CableCARD 1 Signal Strength 87 Sign Lock Yes Program Lock: Yes Search Complete Yes SNR 35 dB RS Uncorr 0 RS Corr 0 Tuner 1 Channel 42 (Cartoon Network) Freq. 189000KHz Modulation Toggling between QAM 64 & QAM 256 Conn RF2 Cable CableCARD 1 Signal Strength - Sign Lock Yes Program Lock: NO Search Complete NO SNR - RS Uncorr - RS Corr 0 Thanks for any suggestions!