$2.3M–$3.7M per year gross revenue:

Putting it together (podcast‑only)

Ads (STM only): 0.85 – $0.95M

Memberships: $1.5–$2.6M/yr

Working estimate (gross, podcast‑only): $2.3M – $3.7M per year for ads + its share of memberships. Mid‑case lands near $2.9M/yr gross; after typical platform/processing fees and less‑than‑perfect ad sell‑through, a net in the low‑to‑mid $2Ms seems plausible.

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Quick answers

How many listeners: 175K downloads per episode, ~1.4–2.1M monthly downloads, demographics skew U.S., median age ~36.

How much revenue? $2.3M– $3.7M/yr gross from ads + memberships attributable to the STM show