I can't find another topic with this title, though admittedly my skill with the search facility on this forum is not of the highest.
Having got really fed up with the variable and sometimes appalling technical quality of other signal streams, I have now settled at least for a while on internet radio. It knocks the others into a cocked hat, at least when listening on my hi-fi system. Classic FM on FM is hopeless because of the gross compression they impose for the benefit of those who listen in cars, and Radio 3 on FM is of variable quality for sundry other reasons to put it politely. DAB in this area likewise cannot be relied on either. In contrast, internet radio is a revelation and it really brings out the superb quality of much of the source material.
What really prompted me to write, however, was the unexpected appearance of - wait for it - organ music on today's 'Saturday Classics' on R3. I just managed to avoid fainting with surprise, and so was able to take in Marie-Madeleine Duruflé's rendition of Bach's C major P&F (BWV 547) played on a Gonzalez instrument. I have not heard as much of her as I should like, but her style is similar in at least two respects to that of Helmut Walcha. She adopts a strict tempo throughout (except for a rallentando at the end of the fugue) together with minimal and therefore telling changes of manual and registration. This was followed by various choral works by other composers, which came over with astonishing clarity thanks to the internet.
If you haven't tried it yet, maybe internet radio will press your buttons too. It's easy to access from Windows (just Google to find it). On Linux/Ubuntu I had to install the 'gradio' app, but having done so it works equally well. I can't speak for Mac. But to get the best from it you will need to listen using audiophile headphones or a good hi-fi system.