I'm planning to post a how-to. but I would like to update it for kernel-power v48. It is supposed to have some updated DSP bridges, so maybe performance is better when using the default media player to decode the streams.

Also I'm pretty sure the 70e uses a different chip than the 73e, so you need a different module.
I think 70e uses a eMPIA chip, 73e uses dib0700