NeoGaffer Dylx: Was downloading an update for Battlefield 4
2 or 3 from Reddit: Unknown specifics
Twitch Streamer: Was downloading DCUO when it stalled. He unplugged the console. It wouldn't work properly after that.
1 IGN unit: See Original Post. (HDMI failed after starting a download of Netflix)
1 Kotaku unit: "Here are the facts: In the past week, my Kotaku colleagues and I have used one pre-release PS4 and three retail PS4s with no problems. I've also heard from fellow gaming reporters who've used their PS4s with no problems. But the first retail unit that Sony provided me failed to work when I plugged it into a TV in Kotaku's office. A colleague and I were able to compare it to a second PS4 that did work and we found that the issue was rather simple: the bad unit had a faulty HDMI jack that we couldn't fully plug an HDMI cable into. It couldn't make a solid connection and therefore, apparently, couldn't transmit a stable signal to our TV. We tried different cables and monitors. The issue was with the console."
The PlayStation 4: The Kotaku Review (In Progress)