My channel would definitely have an international flavor. The playlist would have all the world's local hits. Many different languages.
Example schedule:
12-6 AM non-stop music from around the world, from all decades, all levels of popularity
6-9 AM mostly uptempo current music
9-12 PM Latin/African (traditional) music
12-3 PM Asian music
3-6 PM European/American music
6-8 PM chart hours, recaps charts from around the world and airs the biggest hits
8-10 PM request hours, people can request a certain video online with like a story or dedication and the best ones are picked out and highlighted on air
10-12 PM for weird, non-standard music