Hello All, I had a TiVo Premiere (my first) installed last week and my experience has been a nightmare so far. After resolving some of my issues I'm left with the most puzzling one that no one can seem to resolve: my TiVo is struggling to tune 2 channels simultaneously. There is nothing wrong with the tuners or the channels because I can independently tune any channel on either tuner and it will work. However when I flip to the other tuner, the previously tuned channel is gone and I get either a "not authorized" or "signal problem" error. After flipping around a bit that channel will come in, but then when I flip to the other tuner I get the same message for that channel. Now here comes the real kicker: this problem appears to be dependent on what channels are tuned on each tuner. For example, I can have 623 (TNT) and 681 (ESPN) tuned on both with no issues, but if I flip either to 660 (Travel) and then swap tuners I get an error on both 623 and 681. I've discovered a number of different channel combinations that either work or don't work. As you can imagine, this creates a nightmare when trying to record shows. Does anybody have any suggestions? I'm puzzled and my cable company is puzzled. I've done multiple restarts. I've had another installer come out and swap cable cards and TiVo's, test the signal, etc. I have RCN in Boston and I'm using a leased RCN-branded box.