You know what, you’re right. Numbers have shifted since I last checked this, there’s more funding from members than before 2020. The (now 30%) station contribution has less federal dollars in it checking the larger station revenue reports. It’s probably around 15% without spreadsheeting it, I didn’t check PBS.
There are people who believe that colloidal silver has special medicinal properties, and take it as a form of supplement. It’s a joke about those people, including the ones with skin tone side effects.