The BBFC classifies films in the UK based on their age ratings. Films featuring violence, nudity or other mature content receive higher age ratings like 18. The BBFC was established in 1912 and uses universal symbols to easily convey a film's rating. OFCOM regulates television broadcasting in the UK to ensure content is suitable for audiences of all ages. It has rules around violent or inappropriate content only being shown post-watershed after 9pm. The watershed aims to protect younger viewers by restricting certain mature programs to late evening time slots.