Add listening history

[todo]

https://github.com/dainmiller/GoodPods/blob/6ab24d5e74965e801c09d7b44edeb6e7ac3ac78b/test.org#L35-L40

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This issue was generated by todo based on a TODO comment in 6ab24d5. It's been assigned to @dainmiller because they committed the code.