The thing too though is to negotiate your ownership and if you are clever you can retain ownership of the music and receive on going royalties especially every time the production is sold on to another network or company.  But they will always attempt to wrangle you out of your ownership.  And will never advise of the fee jump for ownership either.  If they do want to own the rights, you have the right to double your fee.  Docos and jingles can receive mechanical royalties too.  Which can have the potential to add to your fee especially later after it is done.  That may be a factor in the the negotiation.
 
 
The Games people don't do royalties often though.  They buy it all outright but you have the right to negotiate well though if you are good enough.
 
A good thing to do is if you find yourself in this situation, talk to an organisation that looks after music composers in this manner especially.  They can advise.  In Australia it is the AGSC. (Australian Guild of Screen Composers)