While other channels publish a video each day, that is entertaining but it's just someone talking in font of a camera.
This would add more complexity to the UI, that is bad, but you can try to think how to simplify it.
* Allow some channels to be marked as x10? (or x100?)
* Some podcast get a fixed amount of money and the others get an evenly split of the leftovers?
* Make a few levels, and I can put the podcast in these levels. And the total of my money is split somehow. Perhaps half to all the channels in the top level and half to all the channels in the normal level. Perhaps the channels in the top level are worth x10 or x100 of the normal level.
I think that a x100 is not so much. For example the acapellascience release a 3 minute video per month, while other channels post a daily 15-30 minute video, i.e. 450-900 minutes monthly. If I'd like to assign the same amount of money to both, I'd need a 150-300 multiplier.