Unlike the apparently out of print Mill Creek Region 1 set, this one has the series spread out over 42 discs instead of 28. Supposedly there are also none of the music related edits I've seen mentioned about the US release.
The Mod Squad S2 (will probably stop after this, apparently the last season to be remastered)
The seasons 3, 4, and 5 dvd sets of Mod Squad actually have decent transfers. They're not recent modern hd ones, but appear to be transfers made back in the 1990s.