Just noticed a useful post - https://www.world-of-satellite.com/s...l=1#post519927
CH4 HD is now on 126 on Freesat, plus additional music programmes in the 500+ range. May need some tweaks to ABM code for HD swaps maybe?
EDIT - I just tidied up my own custom mix file (which was swapping Ch4 HD from the SKY bouquet into position 104 on Freesat) and deleted all existing ABM bouquets and re-ran ABM clean. CH4 HD is in the correct position (104) after BBC 1/2 and ITV HD in the Freesat ABM bouquet and C4 SD is at position 126. The music channels are in position 500+, so all looks ok