Hi there, thanks for the question. These episodes were not included with the first DVD release of The New Scooby Doo Movies in 2005. From what I've read this was because Warner Home Video could not reach rights agreements with the guest stars of these episodes at the time. In 2019 they were finally able to release these episodes on 2 DVD sets plus a Blu-ray. The missing episodes were given their own DVD and that is entitled: "The Best of the New Scooby-Doo Movies, The Lost Episodes." So, that is why they are referred to as the "lost" episodes. The New Scooby-Doo Movies: The (Almost) Complete Collection includes all the episodes except for the Addams Family one which is not included in any of these releases.
How is this lost? I remember watching this on tv
Hi there, thanks for the question. These episodes were not included with the first DVD release of The New Scooby Doo Movies in 2005. From what I've read this was because Warner Home Video could not reach rights agreements with the guest stars of these episodes at the time. In 2019 they were finally able to release these episodes on 2 DVD sets plus a Blu-ray. The missing episodes were given their own DVD and that is entitled: "The Best of the New Scooby-Doo Movies, The Lost Episodes." So, that is why they are referred to as the "lost" episodes. The New Scooby-Doo Movies: The (Almost) Complete Collection includes all the episodes except for the Addams Family one which is not included in any of these releases.