Bill Holt has been played on NTS shows including Black Impulse, with Program Ten first played on 2 September 2017.

In the early 1970s, Bill Holt produced a recording called dreamies - a collage of songs performed on guitar and synthesizer (a Moog Sonic 6) combined with snippets of found sound. The album consists of two long tracks (originally one on each side of the record) called Program 10 and Program 11, a reference to the Beatles' Revolution #9. "Dreamies" includes excerpts of radio and television broadcasts as well as samples taken from recordings by the Beatles. It is one the earliest examples of sampling in popular music.

He has also recently released a new CD, titled Dreamies: Program Twelve (The End Is Near), featuring similar sounds to the previous dreamies, with more recently released music including Neil Young and Nelly, and President Bush speeches about Saddam Hussein.

"Dreamies" is a term coined by Isaac Asimov in 1955 in a short story called "Dreaming is a Private Thing". It refers to manufactured dream sequences.