Masterworks Broadway has announced a new slate of three titles in the Sony imprint’s ongoing CD-R/DD initiative restoring classic cast recordings to print.  This trio hails from the RCA Victor and Columbia catalogues, with two titles new to the digital domain. Sid and Marty Krofft are beloved creators of a pantheon of children’s television classics including H.R. Pufnstuf, Land of the Lost and Sigmund and the Sea Monsters, the latter of which has recently been revived as a brand-new program on Amazon.  Considerably less well-known is the production the Kroffts created for…