Youtube Api V3 Returns Truncated Watch History

I'm able to access my watch history via the YouTube v3 data API, but it only returns my most recent 30 videos (though I see many more when I view the Watch History on YouTube.com).

Solution 1:

Update: As of Sept 15, 2016 the watchHistory is no longer provided in any capacity so this is, sadly, now irrelevant.

It seems like this is a known bug originally reported in 2013. The exact same behavior is explained on a Google Code thread: https://code.google.com/p/gdata-issues/issues/detail?id=4642

"I get back results but like a few posters up, they are very recent videos (possibly a day's worth). I can't seem to find any documentation on a time limit for retrieval. Anybody found a workaround or figured out how long the history is available?" (recent comment on the thread)

Looks like I'm out of luck until Google decides to fix this. Hopefully someone proves me (and everone else in that Google Code thread) wrong.