Our thanks to reader Martin Nolan for tipping us off to the releases. All of these releases are in Widescreen, with Dolby Digital English audio. Here's the studio description of the show, plus artwork for all three releases (the covers for the two single-disc releases mention which three episodes are in each box):
One of the highest rated shows on Travel Channel (U.S.) and W Network (Canada)!
The Goal: To uncover the mysteries and bring an honest account of reported paranormal activities from some of the world’s most renowned haunted locations.
The Team: One open-minded observer, one scientist and parapsychologist, one spiritual medium and one objective film crew. Featuring spiritual medium Derek Acorah, Hosted by Yvette Fielding.
Could you lock yourself in a haunted location for 24 hours? That’s exactly what the Most Haunted team does. Led by Yvette Fielding, the crew investigates some of the scariest places in Britain, attempting different experiments to communicate with the dead and prove the existence of the afterlife.