Currently, Republic Pictures and CBS Television Studios own the copyrights to the series (while CBS itself now owns distribution rights); CBS DVD (with distribution by Paramount Pictures Home Entertainment) released Season 1, Volume 1 on DVD in Region 1 in late 2007. Reviews of the first DVD set have been very positive as the show appears uncut, unedited and uncompressed, digitally transferred and re-mastered from the original negatives and restored from original magnetic soundtrack, although a disclaimer by CBS mentions some episodes are "edited from their original broadcast versions" and some music changed for home video. Incidental music was altered in at least two episodes, "Where the Action Is" and "The Garden House". There are no subtitles or alternate languages, but English closed captions are provided, and the "liner notes" consist merely of TV-Guide-style episode synopses inside the four-disc holder. Season 1, Volume 2 was released on February 26, 2008. Season 2, Volume 1 was released on June 10, 2008. Many reviews of this third DVD set were highly negative due to the replacement of the original used music tracks with the aforementioned synthesizer music (see Musical score section above for details.) Season 3, Volume 1 was released on October 27, 2009, and Season 3, Volume 2 was released on December 8, 2009, with most, but not all, of the original music intact. Season 4, volume 1 was released on November 2, 2010. This volume was the first to include any extras, including a Featurette titled "Season of Change: Composer Dominic Frontiere". Season 4, Volume 2 was released on February 15, 2011.