I am currently using a PowerMid XL 8 in 1 Remote with RF Sender and Receiver. Works great on all my equipment apart from the PACE DITV-1000 cable box from NTL. The remote on it's own works with the Cable box fine, but it will not acknowledge any signals sent from another room (via RF) to the Receiver unit. It seems that the IR signals sent from the Receiver unit are different to that on the Remote itself.

I'm totally pissed off with PACE for producing the only cable box which don't support remote extenders.