Dr. Cranfill started at KCBS-FM JACK FM Los Angeles in 2005 the day after it flipped from Arrow 93.1 as a part time promotions assistant. In less than a year he was hired on as a full-time writer for the station. Since then he has become an on-air personality hosting weekend JACK-tivities and is host of the Saturday Night JACK FM Party Train from 8pm-1am. In addition to his on-air duties, Dr. Cranfill is also JACK FM's lone programmer and music director. He has also been known to openly feud with KROQ's Megan Holiday on Instagram because she is dumb and deserves our collective scorn.