Why is "Billy's Olympic Nightmare" trending?

Wikipedia Overview

Episode 4466 of the BBC soap opera EastEnders was broadcast on BBC One on 23 July 2012, between 9pm and 9.30pm. It was written by Matt Evans, directed by Clive Arnold, and executively produced by Lorraine Newman. It included seven minutes of live footage, during which the character of Billy Mitchell, played by Perry Fenwick, carried the Olympic Torch as an official torch bearer as part of the official torch relay for the London 2012 Olympic Games, and Lola Pearce, played by Danielle Harold, gave birth to her daughter. The storyline for the episode was announced in November 2011, with the fact that Lola would give birth being reported in July 2012. The episode received positive reviews, with Karen Edwards from Heat calling it "special" and praising Harold's performance, and Jane Rackham from the Radio Times calling it "highly topical", though Boyd Hilton from Heat felt that Billy's torch bearing was a "gimmick" and the whole episode should have been live. It was watched by an average of 7.32 million people on its initial broadcast. It was accompanied by a special, one-off BBC Red Button episode called "Billy's Olympic Nightmare". The episode received an All About Soap award nomination for Best Episode, under the name "Billy and the Olympic Torch", and a British Soap Award nomination for "Spectacular Scene of the Year", both in 2013.