Series Rejoice, fans: The treatment you've awaited is here! Michael Landon's enduring '70s drama of frontier family life finally has 50-minute episodes (network length, not syndication) and correct-speed sound in durable compact packaging. Season 1 Blu-ray is gorgeous, with high-def revealing details of Pa's battered buckboard and Laura's freckles. Audio sounds intimate in DTS-HD 2.0. (There's also Spanish/French Dolby.) Season 2 due out May 6.

Extras Part 1 of smart 40th-anniversary retrospective has new cast interviews. Ultraviolet digital access included.

List price $30 DVD/$39 Blu-ray (expect deep discounts), out Tuesday from Lionsgate.

Also out:

TV GUIDE SPOTLIGHT: SAMPLER SETS Show your kids or grandkids what you grew up watching. Two-disc sets, each $10:

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GREAT COMEDIES OF THE '90s Two episodes each of "3rd Rock from the Sun," "The Larry Sanders Show," "That '70s Show" and "NewsRadio"; plus Jay Mohr cult sleeper "Action," "The Nanny," "Mad About You," "Just Shoot Me," "The Jeff Foxworthy Show," "Ned and Stacey."

LEADING LADIES OF CLASSIC COMEDY First four episodes each of "Bewitched," "I Dream of Jeannie," "The Flying Nun," "Gidget," "Maude."

COP SHOWS OF THE '70s Two early episodes each of "Charlie's Angels," "Police Woman," "Starsky & Hutch," "The Rookies," "S.W.A.T."