Up to 120 minutes of video could be stored on a laserdisc, which looked like a giant CD the size of an LP record. Unlike DVDs, the video was encoded in analogue format, so was far from ideal — at the time, though, it still offered superior picture quality and greater durability compared to VHS.
A total of 8 Doctor Who laserdiscs were released in the 80s and 90s, before the arrival of DVD killed the format forever. Five different discs were released in the UK, two in North America and even one in Hong Kong. A UK release of Spearhead from Space was also planned for early 1998, but cancelled at the last minute. None of the laserdiscs contained any DVD-style special features.
Nowadays, online auction sites such as eBay would be your best bet if you want to pick up any of these discs (or indeed a player so you can watch them!)
There are plenty of forum and online reviews which discuss laserdisc quality vs. DVD quality to this day. Forum and review sites can cover everything from home theater equipment to Titlemax reviews for title loans.
|Revenge of the Cybermen||Tom Baker, Elisabeth Sladen & Ian Marter||Gerry Davis||UK Laserdisc||Dec 1983||7.8||None|
|The Brain of Morbius||Tom Baker & Elisabeth Sladen||Terrance Dicks & Robert Holmes||UK Laserdisc||Jul 1984||6||None|
|The Day of the Daleks||Jon Pertwee, Katy Manning, Nicholas Courtney & Richard Franklin||Louis Marks||US Laserdisc||Jan 1992||7|
|The Five Doctors||Peter Davison, Patrick Troughton, Jon Pertwee & Richard Hurndall||Terrance Dicks||US Laserdisc||Aug 1994||9.2||None|
|The Ark in Space||Tom Baker, Elisabeth Sladen & Ian Marter||Robert Holmes||UK Laserdisc||Oct 1996||4.6||None|
|The Day of the Daleks||Jon Pertwee, Katy Manning, Nicholas Courtney & Richard Franklin||Louis Marks||UK Laserdisc||Dec 1996||7|
|The Movie||Paul McGann, Sylvester McCoy, Daphne Ashbrook & Yee Jee Tso||Matthew Jacobs||China Laserdisc||Jan 1997||9.2|
|Terror of the Zygons||Tom Baker, Elisabeth Sladen, Ian Marter & Nicholas Courtney||Robert Banks Stewart||UK Laserdisc||Dec 1997||5.8||None|