Here's a good video from Pulse Records on pitching and placing music. He refers to what his company looks for but it's universal. Sound quality matters…HAVE A BROADCAST READY SOUND! Indy artists are also competing against major labels and major artists for the same placements, so your song AND your RECORDING AND MIX must compete with the big boys! If you can't make it sound like a record, hire someone who can. Make sure your track matches what they are asking for. No profanity or do the clean version also at mix time. …and a lot more.