Teen dramas are typically television series in which the focus is on teenage characters. For the first 45 years of television it was relatively un-heard of, but it came into use in the early 1990s. Before that, most series based around teenagers were typically sitcoms, while anything with teens and drama tended to be part of bigger ensembles that include adults and children. Teen dramas often reflect elements of soap operas, allowing the young adult characters to get into challenging situations and face an array of realistic teen issues. However, some teen dramas have elements of science fiction, adventure, fantasy and often have elements of comic relief.
“In the UK teen dramas were aimed at older children and teenagers. They were shown after school hours in special variety shows. Presenters would introduce them in between cartoons and other children's programmes such as Grange Hill and Byker Grove. The only exception is the teenage soap opera "Hollyoaks" and older audience aimed teen dramas, such as the groundbreaking "As If" and also "Skins", "Sugar Rush" and "The Inbetweeners" all shown on Channel 4 and E4 with "Hollyoaks" shown at 6:30 pm and Skins, "Sugar Rush" and "The Inbetweeners" shown later at night..” Quoted from Wikipedia.