Very rare show. I only have one in my collection from someone who taped it on Betamax. 2-inch videotape shows, very unlikely to see the light of day again.
There's also many great black and white CBS shows that would merit consideration: Our Miss Brooks, December Bride, The Millionaire, The Lineup, Ben Casey, The Defenders, Trackdown, The Rebel, How To Marry a Millionaire. Too bad they don't license as I'm sure Timeless would love to get...
I can tell you that The Magician is one of the shows that has been under consideration for release. Whether or not they actually do it or not, I have no idea, but since it was remastered for SciFi Channel for the run there in the 90s, they don't have to do any additional work on it.