Advertisements 8/13/20 I am on my 6th--yes 6th--Bolt in 12 months. I installed this last one a few days ago. It is setup properly (I've had Tivos for 20 years and know what I'm doing), streams well, runs with an antenna fairly well, but when set up for cable only I get no picture or audio. I get the message "Porblem with the signal on this channel. Trying again. V53." In the last few days I have replaced the cable card three times and the tuning adapter twice. Spectrum cable repairmen have spent hours across two visits checking lines, replacing cable ends, updating the cable card firmware, trying different configurations, etc. and Spectrum says the problem is with Tivo. Of course, I've also spent hours on the phone with Tivo and Spectrum trouble shooting everything and had to drive to a Spectrum store to get additional equipment. Tivo support says that because the SNR is 37, the machine will not work. The SNR is "supposed to be between 29 and 35" according to Tivo. Spectrum says they are never below 35 and are usually higher because a higher number indicates a better signal. If "SNR" means "signal-to-noise ratio", that makes sense to me. I think my replacement Tivo is bad out of the box. I have been without cable for two weeks because first Tivo had to send a transformer to make sure that was not the problem. This Bolt appears to work, change channels, record (although nothing shows up), etc. but I see nothing. I think the foreign Tivo support person is not reading their manual properly. I have two companies pointing fingers at each other and I've got a very expensive door stop. Does anyone know the proper specifications here?