Well, I just did some digging on this since only the first 2 seasons are out on DVD. JMS wrote in the 3rd and 4th. CBS feels there's not enough demand for these seasons to be released on DVD. I emailed to let them know we're out here as loyal fans to JMS which could bring a bigger market for season 3 and 4. I also mentioned the way amazon released Jeremiah, which appears to be a 'print on demand' dvd type of deal.

Their email is: [email protected]

If you want to see more JMS work on dvd