The answer doesn't have to specifically apply to the travel channel. It could apply to smaller budget documentary style shows or even something like Amazing Race. Do they actual have people compose new soundtracks for every show? Do they license already existing music for every show? Do they buy a giant royalty free soundtrack library? or is it a combination of all three? Also I'm working on a travel documentary and need a soundtrack but can't spend a fortune (no > $500) and am hoping people can make some recommendations for going the royalty free or similar route.