E4 is a British digital television channel launched as a companion to Channel 4 in January 2001. The "E" officially stands for entertainment (although it can also be seen an a reference to the drug Ecstasy), and the channel is mainly aimed at the lucrative 18 - 35 age group. Programming includes US imports such as Friends, ER, The Sopranos, Six Feet Under and The West Wing, sometimes premiering on E4 before being broadcast on Channel 4, plus lots of home-grown chat and reality shows.