Isn't that the same for most of the stations?
Planet Rock tend to play different songs from artists than other stations but do repeat them.
I find it frustrating that artists with massive back catalogues have the same 4 or 5 songs played ad nauseum on the radio.
Another bugbear is Queen constantly on the airwaves. I've a 30 minute drive home and, on average, 3 of the five days I'll hear Queen on that drive. Flicked the stations over one day and they were playing on 3 different stations at the same time. Local radio, Absolute and Virgin IIRC.