There’s been a lot of discussion online about the fact that The Sopranos and Gilmore Girls exist as TV shows in each other’s universes, but that’s not the only Sopranos paradox. It originated with a Reddit post by u/Firstasatragedy, but it’s since been picked up by publications like Esquire, Looper, and Bustle. In The Sopranos season 6, episode 4, “The Fleshy Part of the Thigh,” when Paulie visits Nucci at her retirement community, an episode of Gilmore Girls is playing on a TV in the background.
https://screenrant.com/gilmore-girls-sopranos-reference-curb-your-enthusiasm-paradox-factoid/