Here's the main show page for Smartphones Show 56.
Here are the RSS feeds for the QVGA and VGA versions, just paste them into your feedreader.
In addition, there's also a high-res YouTube version, following YouTube's decision to start allowing high-res video playback. Their high-res isn't quite VGA, but it's better than upsampled QVGA. Here's the direct link to the higher quality YouTube version of Smartphones Show 56.