I was trying to get the PBS channels to supplement Galaxy 3 and Telstar 5 but while I picked up some channels PBS seems to be gone. They still show on the latest lyngsat update, am I doing something wrong perhaps. Like I say I managed to pickup MTA International and Bloomberg but no PBS.
The PBS channels (both DVB and DCII) are on the weak side, and harder to lock on than the other signals on that sat. I don't think that what you describe is unusual, I've had problems with this myself. I finally got them to lock, but because the DVB signals are AC3, I don't get audio with them anyway, so I don't watch them.