Hit up the major semi-legal streaming sites
OK, "semi-legal" is kind of a euphamism here, but if you're finding it hard to mark out to a recording of a recording of Roman Reigns' epic heel turn, it's time to explore the most commonly used streaming sites. Places like FirstRow, StopStream, and Feed2all are popular among PPV pirates, and while they're often riddled with pop-ups and/or horrible connection quality, every now and then you'll find a high-enough-quality stream to satisfy your needs.
Check out Reddit, or just Google it
If the streaming sites listed above are a bust, your next move should be to check Reddit -- the /r/SquaredCircle subreddit will usually post an official discussion thread for major events, and you'll often find links to live streams posted within. Alternatively, you can just try punching "Survivor Series stream" into the sitewide search function and see what pops up, and as a last resort, scouring Google periodically can often yield new stream results.