Observational documentaries film subjects in real time without their awareness of the camera. They have no voiceovers or visible film crew. Examples include reality shows like Made in Chelsea and TOWIE. Endemol produces many observational documentaries like Big Brother through its controlled companies. They are known for handheld cameras that follow the action with minimal editing. Though sometimes criticized, they are popular due to depicting real drama and relationships. Their target audience enjoys watching and learning about real people's lives.