Silicon Valley (season 4)  The fourth season of the American comedy television series "Silicon Valley" premiered in the United States on HBO on April 23, 2017. The season contained 10 episodes, and concluded on June 25, 2017. This is the final season to feature T.J. Miller as Erlich Bachman. In April 2016, the series was renewed for a fourth season. On review aggregator Rotten Tomatoes, the season holds a 97% approval rating, earning a "Certified Fresh" rating. It holds an average score of 8.18/10 based on 33 reviews. The site's critical consensus reads ""Silicon Valley"s fourth season advances the veteran comedy's overall arc while adding enough new wrinkles – and delivering more than enough laughs – to stay fresh." Similarly, on Metacritic, which uses a weighted average, holds a score of 85 out of 100, based on reviews from 10 critics, indicating "universal acclaim". Giving the season a B+ grade, Ben Travers of "IndieWire" praised the show's "renewed focus on the dangers of ambition", and writes that the fourth season "becomes a bit more thoughtful and bit more ambitious". In "Vulture", Odie Henderson called the season the show's funniest yet. Most of the season's criticisms noticed the show's repetitiveness, but often found the series funny nonetheless. Verne Gay of "Newsday" wrote, "There's a sense that we've traveled down this road paved with silicon once or twice before, but the ride is still smart, engaging, and highly informative." Still, when reviewing the season finale, Alex Riviello of Slash Film expressed disappointment that "the season squandered any forward momentum it promised with the premiere" Similarly, "The Washington Post"s Alyssa Rosenberg wrote that "The biggest problem with [the season finale episode] is obviously that it repeats the series' pattern of ending seasons". The fourth season was released on DVD and Blu-ray on September 12, 2017; bonus features include deleted scenes.