A collection of classic organ broadcasts has come on-line recently, thanks to the former Dutch radio service Radio Nederland Wereldomroep. RNW was a major international broadcaster for 50 years, and it produced many series of music programs, sent on vinyl phonograph records to be transmitted by local stations around the world.
Here is a set of performances from 1968 under the series title "Netherlands Church Organs of the 18th Century". Each program is about 28 minutes long.
My favorite so far is #2: Noordbroek. What's yours?