Is comedy of any interest to you? ROK Classic Radio has a 24-hour British Comedy Channel (Hancock, Navy Lark, Men From the Ministry, etc). There's also the All Time Gold channel (with some more British comedy, plus US radio plays, etc), together with the American Comedy Channel (Bob Hope, Jack Benny, etc), the Crime and Suspense Channel (Sherlock Holmes, Dragnet, Sam Spade etc) and the Science Fiction and Supernatural Channel (Journey into Space, CBS Mystery Theater, Strange Tales, etc). It's where I do most of my listening!
http://rokradio.com/
As has also been suggested, Radio 4 Extra is great for comedy and drama. It's online here:
http://www.bbc.co.uk/radio/player/bbc_radio_four_extra