In the last century, these media based efforts have also made use of emerging media such as radio and television. The first of these was H. M. S. Richards' radio show The Voice of Prophecy, which was initially broadcast in Los Angeles in 1929. Since then Adventists have been on the forefront of media evangelism, and one program, It Is Written, founded by George Vandeman, was the first religious program to air on colour television and was the first major Christian ministry to utilize satellite uplink technology.