Modern radio presenters seldom even know anything about the music they play. They just seem to press the buttons to broadcast the songs off some pre-ordained play list that they have no influence over, that are constantly repeated on a random loop.
There are literally hundreds of chart hits that simply never get played. It's all the same, even across different radio stations (and BBC are just as bad as the commercial ones).
It's virtually impossible to find any station/presenter who'll play requests or anything different. There are even some top 10 and top 5 and even number 1 hits that never get played at all.
Our local radio station, BBC radio Lancashire have recently scrapped their last "proper" request show which was something called "unforgettables" on Sunday evenings. You could email/phone for requests which they'd play within a week or two, and the presenter would also play loads of "forgotten" songs that he found himself, often chipping in with some background information, fun facts, etc. It was a really good "sit back and chill" evening. Literally anything was played, from right back to "big band" orchestras and old musicals, through to Elvis, Beatles, Olivia Newton John, Helen Reddy, Carpenters, then Abba, Elton John, Billy Joel, ELO, and even "novelty" songs and children's TV program songs - basically anything that wasn't on the "loop" for the regular stations that wouldn't be played on radio otherwise!