The same week that the Thomas John sting revelation was made in The New York Times, John's claimed mediumship abilities portrayed in the Lifetime reality TV show called Seatbelt Psychic were challenged by Gerbic in an article published by Skeptical Inquirer. In the show, John is a ride-share driver who surprises “unsuspecting” passengers when he delivers messages from their deceased relatives. Gerbic investigated and revealed that John's passengers are actually actors, several of which are documented in IMDb. Gerbic concluded that the riders were likely hired to ride with John, but were probably not acting when talking with him. She concluded that the details about their lives mentioned by John were easily found on social media sources, and likely fed to John, making the readings actually hot readings. One rider, Wendy Westmoreland, played a character on Stalked by a Doctor, a TV show also produced by Lifetime.
The Polish medium Stanisława Tomczyk's levitation of a glass beaker was exposed and replicated in 1910 by the magician William S. Marriott by means of a hidden thread. The Italian medium Lucia Sordi was exposed in 1911, she was bound to a chair by psychical researchers but would free herself during her séances. The tricks of another Italian medium Linda Gazzera were revealed in the same year, she would release her hands and feet from control in her séances and use them. Gazzera would not permit anyone to search her before a séance sitting, as she concealed muslin and other objects in her hair.
The magician Julien Proskauer revealed that the levitating trumpet of Jack Webber was a trick. Close examination of photographs reveal Webber to be holding a telescopic reaching rod attached to the trumpet, and sitters in his séances only believed it to have levitated because the room was so dark they could not see the rod. Webber would cover the rod with crepe paper to disguise its real construction.
^ LeCron, Leslie; Bordeaux, Jean (1970). Hypnotism Today. Wilshire Book Co. p. 278. ISBN 0-87980-081-X. When in a trance ... the medium seems to come under the control of another personality, purportedly the spirit of a departed soul, and a genuine medium undoubtedly believes the 'control' to be a spirit entity ... In the trance, the medium often enters a cataleptic state marked by extreme rigidity. The control then takes over, the voice may change completely ... and the supposed spirit answers the questions of the sitter, telling of things 'on the other plane' and gives messages from those who have 'passed over.' https://drive.google.com/file/d/1jaiz1mTECKiiESpwX8al362NU5Rjk2JP/view?usp=sharing
In the late 1920s and early 1930s there were around one quarter of a million practising Spiritualists and some two thousand Spiritualist societies in the UK in addition to flourishing microcultures of platform mediumship and 'home circles'. Spiritualism continues to be practised, primarily through various denominational Spiritualist churches in the United States, Canada, Australia and the United Kingdom. In the United Kingdom, over 340 Spiritualist churches and centres open their doors to the public and free demonstrations of mediumship are regularly performed.