Channel E4 LOGO.
E4 is the Channel 4's station which broadcasts the CBS sitcom The Big Bang Theory for the United Kingdom and Ireland. They have shown 101 episodes of the show as of April 5, 2012. On the same date, the channel held a Big Bang Night which showed two behind the scenes specials and the 100th and 101st episodes. Needs updating.
As of March 10, 2016 the last episode seen was season 9's "The Earworm Reverberation" with the next episode to be shown on March 17.