Channel 4, Channel 5, and ITV were researched. Channel 4 began in 1982 and became a UK-wide channel in 2010. It has many sister channels and a variety of popular shows like Hollyoaks and comedies. Channel 5 launched in 1997 and has fewer sister channels. Popular shows include Big Brother and Home and Away which appeal to different audiences. ITV is a collection of regional channels that launched in 1955. Popular shows on ITV include Britain's Got Talent, Coronation Street, and Jeremy Kyle which entertain a range of audiences. Each channel also airs documentaries on topics like plane crashes, pets, and loss.