I'm sure there are probably lots out there in the cloud, but I like to listen at my leisure, during my commute to work on the train etc. There is a newsgroup called alt.binaries.sounds.78rpm-era and a couple of kind souls record and post a couple of weekly shows - one from WAMU - Hot Jazz Saturday Night, and the other from WFUV - The Big Broadcast (which imho is the best of the lot). I download them and put them on my Sandisk player. Rich Conaty's theme song (Big Broadcast) is Fats Waller's You Meet The Nicest People In Your Dreams. If you like boogie, you like Fats.

>Our cable network has music channels and there are a few jazz stations. Some focus on the older jazz... I listen to the boogie woogie jazz station
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>>For straight jazz, I have Jazz.fm right here in Toronto on 91.1FM, but for the old jazz from the 20s and 30s there are far too few choices.
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>>>One of our local NPR stations, KUER (locally, known as "queer") has Jazz every night.
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>>>>But WAMU has a great show on Saturday night called "Hot Jazz Saturday Night" hosted by Rob Bamberger. He plays a lot of old jazz from the first half of the 1900s, so the station can't be all bad.