According to Wikipedia, 3ABN, although it supports the mission of the Seventh-day Adventist church, is an independent, nondenominational ministry.
3ABN hosts various SDA personalities such as John Bradshaw, who appears daily with It Is Written and Lincoln Steed, editor of Liberty magazine, who is scheduled tomorrow in the TV lineup. Elder Ted Wilson has also appeared fairly recently on 3ABN.
3ABN is probably the only nondenominational entity which regularly has well-known SDA leaders appearing on it.
(On a side note, Danny Shelton and reputed girlfriend Yvonne Lewis are together hosting 3ABN Today this coming Sabbath.)
Wikipedia also delineates the history of how Tommy Shelton went to prison for pedophilia and mentions the present federal lawsuit claiming that the network was negligent in how it handled the allegations against Tommy Shelton.