Apple didn't seem to have it at first, but season 4 is there now.
However, what I said above about me buying if it was priced fairly.... at $135 + tax for the series, they won't be having many buyers.
Great news. Watched a couple on Hulu, but the commercials ruined it and stopped watching.
Will pick it up if priced fairly. More of these classic series should be available for purchase in HD Digital such as this show, Cheers, Andy Griffith, etc. But there still many other classic series...