Hi,
Also I have the same problem.
Pinnacle write on the PCTVtoGo box: "Wireless and Ethernet networked TV capture device and PVR (Personal Video Recorder) with TimeShifting. I believed to be able to schedule the automatic recording with WinXP but is not possible.
I hope that Pinnacle releasing an software updating.
I think that a small alteration like option comand line (ex. c:> PCTV To Go Player.exe -R) would suffice. With standard windows scheduler the target would be reached.