Broadcasters/Distributors

BBC 4
BBC 4 features a range of top-quality original audio work, often theatre. Repeats are aired on BBC 7 for a while.

XM Radio - Sonic Theater
The only (?) nationally-available audio theater programming comes care of XM radio. Sonic Theater features a rotating schedule of many top audio dramatists, albeit criticized as being a bit repetitive if you’re a loyal listener. Makes me want to sign up

ZBS Foundation
Both a producer and a source of audio theater works, the ZBS Foundation features great original audio theater from contemporary producers available on CD or download.

Blackstone Audiobooks
Features the Hollywood Theatre of the Ear works as well some great regular audiobooks.

Audible
Audible is a great service, but their audio drama selection is a little spare. However, there are a few gems available at a reasonable price and the catalog seems to be growing.

WMPG
Portland, Maine’s WMPG features “Radio Drama Revival!” a weekly show by FinalRune’s Fred Greenhalgh, Thursdays 1-1:30PM EST