In the last episode of Walking Dead, one of the characters explains his cavalier attitude about being lowered into a well to try to extract a zombie from the drinking water. He says he approached it as if he was playing Portal. “It’s a videogame,” he explains.
I appreciate the product placement, but I don’t really get a Portal vibe from that scene. It does vaguely recall a certain Valve game, but not Portal. I can’t quite put my finger on it. Maybe Team Fortress 2.