Jerry Seinfeld is almost a billionaire due to his eponymous sitcom. The starring cast of Big Bang Theory fame were earning nearly a million dollars an episode by the end of the series. Similar story with Two and a Half Men, Gilmore Girls.

Jamie and Adam were stars of a wildly popular television show that ran for 14 seasons, spawn numerous spin offs and runs in syndication even today. I'd expect them to have hit at least $500k per episode.