Hitfix’s Alan Sepinwall reports that HBO has renewed “Silicon Valley” for a second season. (We’ve been recapping the surprisingly true-to-life show each week. Read reviews of Episodes 1, 2, and 3). This is not only good news for fans of the show; it also suggests that HBO’s Sunday comedy-block, which includes the also-renewed “Veep” is performing well for the network. And why not? The shows air immediately after the colossally popular “Game of Thrones.” [Source: Hitfix]