If one is really patient and is tolerant of a lot of menu naviagation, some signals may be found by trial and error. Since the exact SymbolRate is found in various places on the net where signals are listed, the receiver performs best as a receiver to receive already known signals of interest to the P3500 user. Not many channels have incorrect PIDs, but when a channel is found with incorrect audio or video PIDs, manual entry would be nice. The P3500 does a very good job of auto PID searching, especially when the digital signals are set up with proper PIDs by the signal uplinker. Due to the fact the receiver software can be upgraded when new versions come out, here are some of the things that might be able to be added or improved in the future.
Some services have secondary audio carriers or have program audio only on secondary audio carriers.
Being off by .100 or .200 mbps can allow for locks when an exact number is not given or when one tries to lock signals based on what one remembers signal parameters to be. The big question is if a CAM circuitboard could be installed so that the receiver could subscribe to scrambled services in the future. A banner with channel number, title, and audio settings scrolls across the screen when a channel is selected. There is a setting to make it scroll across the top or bottom of the screen, but I'd like to see an option for no banner to exist at all if I want to quickly move through a series of channels and not have a banner clutter my view of the resulting video on each channel. By the time the output of the P3500 gets split and distributed, the signal is worse than the signals of my external modulators hooked up to other receivers and split and distributed in the same way as the P3500 signal.