Great question. To this particular library, I have furnished 350 cues, and 321 have been used. Payment is based on several factors; what channel the show is on, how much it is rerun, if it is distributed internationally, and how long the cue runs. On any given royalty report a cue could be good for a few dollars, or a few hundred. Payment is via your PRO (usually ascap or bmi) and takes 9 to 12 months from airing to pay out.