I actually agree with @Lolest!
When it comes to business news, CNBC is an excellent working model! I still remember their documentaries (Google, Coca-Cola...etc) to date they were so good!
My two cents? You're right on the money when it comes to keeping it Business. Not so sure that a vernacular station is the way to go though - especially one that plays after a common stereotype. Keep in mind that in the business-world, sponsors will not always be Kikuyu, and Kikuyu viewers will not always fall into the sponsor's demographic.
Généralement, les gens qui savant peu parlent becoup, et les gens qui savant beaucoup parlent peu.
- Rousseau.