I tell people my commercial skip works about 70% of the time. It works more like 83%+ of the time, but the 70% accounts for little spats when it doesn't seem to be working at all! There is a reasonable likeliness that one of those spats gave you a bad first impression.
If time goes by and it presists consider these:
>In the past some have claimed that CA works better if you go in setup/Default playback and turn on CA as the default. When you start each show CA will already be set to 'ON'. Those people say if you start a show with CA OFF then push the CA button to turn it ON then CA doesn't work as good. There's a good chance it's rubish (from what I can tell), but having CA defaulted to on is something you'd want to do anyway. Let us know if it seems to help
>Poor video signal. If you have many splitters, you probably have low/poor signal. If you have spliters with unused outs that arn't terminated the signal will also degrade. You can try running the cable line directly to the ReplayTV and see if it does better. You can have a cable company do a decible reading of your line (watch out for service charges, ask, and/or go on a monthly protection plan first). you can get a signal booster. Recently there was a thread recommending a good booster (be carefull to get a good booster)
just some thoughts, hope it helped
It's also possible your unit is the problem, but in general that seems less likely compared to the other possible causes