So it seems at times, it’s up to the TV people to submit their cues as well.
As a general rule, it is the responsibility of the production company that used your music to submit cue sheets to PROS, if your music was used in a broadcast production.
Broadcasters themselves do not submit cue sheets, unless they produced the program.
Libraries do not submit cues sheets, They have no idea how much of your music was used in any given program — whether it was 2 minutes or 2 seconds.
In the US, BMI and ASCAP do not accept cues sheets directly from composers. The survey rules.