I think it's all negotiable.
If you have a legitimate person that can actually place the music, ask him.
Thousands per show is reasonable - depending on the network. ABC would pay more than UPN. I've actually received payments in that stratosphere
, but most were in the $1,000 buyout range while retaining writer's small performance royalties. I once got a check from Harry Fox for 38 cents, but never cashed it.
Back to your connection. He's the most valuable piece in the equation.