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I found a podcast I can actually recommend: Not Your Usual Bollocks (iTunes link requires v4.9 for built-in Podcast action) (or NYUB.net). It's a very tasty 30 to 45 minute block of various indie tracks with very little jabber from the London-based host. He plays some obscure stuff (at least to my ears) - some Brit electronica, German electronic. Then he mixes in just enough recognizable stuff from Kasabian, Autolux, Aphex Twin and others to keep it at least a tad familiar. The unpretentious deejay doesn't even mention his name.
Very highly recommended!
PS - make sure force yourself past the first 6 or 8 seconds of ironically dished 80s pop.