I remember being able to catch a couple of hours of Radio Luxembourg on shortwave from the US midwest on some evenings.
In the mid 80s, while serving onboard a US Submarine as a Radioman, on the mid-watch when things were slow, I would connect our new (at the time) Watkins-Johnson Tuner/Scanner to the HF-Tip of our Floating Wire Antenna and scan for radio stations in the Short-Wave and Medium Wave bands. I could always count on "Radio Luxembourg" to come in loud-and-clear! Their Top 40 format kept us up to date with current music while deployed. Many hours spend listening to this station while underway!