AMC-9 has always had active transponders . At it's current slot, it was almost completely occupied by IP/DVB (S2) transponders with UDP data, but there were 2 transponders which would have occasional video on them. When all the IP/DVB channels went away, there were still a couple data transponders, also S2 for a while, then as mentioned, it has been used for sports feeds. It was heavily used when G15 invaded AMC-11. Besides the PA-cable channel, there are still at least 5 24/7 transponders in use for data, a couple of which seem to be in some strange format that I can't lock. My Azbox locks the 3 S2 signals easily, but my TT3200 won't lock them now, although it did earlier. Not sure if my 3200 is dying or what, although it still locks the CBS S2 channels fine. Not sure why it has problems with the AMC-9 transponders. It used to lock them.