I’m a fan of the HBO series “Silicon Valley,” which wrapped up its fourth season Sunday night. I am a little worried that the show is becoming like “Entourage,” in that its heroes are continually saved from their own worst instincts and professional errors by outside forces seemingly pulled out of thin air by the writers. Still, I’m looking forward to season five — not just for the show, but for its animated opening sequence, which changes every year to spoof some of the biggest real-life high-tech companies in Silicon Valley.

Here’s a video explaining which ones were included this season and why: