Billboard's ranking: 1. Super Bowl *Annual
2. Grammys *Annual
3. SNL - Regular TV show
4. Ad during a top event
5. iTunes front page
6. The Voice - Regular TV show
7. Headlining tour
8. VMAs *Annual
9. Coachella
10. Car ad
So the only weekly shows in the T10 are SNL and The Voice. NBC their power.
No American Idol? I'm sure it deserves to be 9 or 10.