The document discusses two crime drama TV series - Sherlock and Life on Mars. Sherlock is set in present day and follows Sherlock Holmes and his companion John Watson as they solve crimes in London and around the world. Life on Mars is set in 1973 and features a police officer who is sent back in time to the 1970s after a car accident. In the 1970s, he works with a rough DI named Gene Hunt to solve crimes using the policing methods of the time period. Both shows include typical crime drama elements like investigations of crime scenes and chases of suspects. However, Life on Mars captures the 1970s setting accurately by showing outdated police cars and the lack of modern forensic technology.