I haven't seen this metioned anywhere else and I guess this is to serve more as a warning. The local Comcast recently converted to all digital channels. The fact that I lost the ability to use the 2nd tuner in my Series 2 was bad enough, but when I started to experience errors when changing channels, I figured it was time to get rid of my Motorola DCT2000 box. I took it back to Comcast and they replaced it with a Pace unit. The unit they gave me was sitting on a shelf without a box. The channels change just fine with the IR drivers, but, since I installed the new cable box, everything recorded on the TIVO shows up as protected. There is nothing in the users guide I found online that talks about this. My S2ST is connected with the Comcast DCA and does not have this problem. The other forums indicate the S2DT does not support the cable box attached through coax. My attempts to connect with the DCA support this. Unless anyone has any suggestions, I am stuck.