Yaobing. I looked at what you suggested and of course, your right .... I have several hundred channels which would make it impossible to check each channel to see if any had same ID. What I ended up doing was to load a different system....mine had 2 ....the one that was loaded was our system labeled "digital" which I had loaded originally. I then loaded the other one which apparently is analogue. I rebooted server then reloaded the digital. Then all was good. The 2 channels that would not show up in guide nor display schedules in guide or Television now appears as it should. I dont know exactly what fixed it but all is good.
Thx