TV Licensing has encouraged businesses in the borough to ensure they are correctly licensed for TV.
The company visited more than 60 businesses in Enfield to check they were correctly licensed after statistics revealed that five of the top 20 live TV programmes viewed on BBC iPlayer were during business hours.
If caught to be watching TV illegally, businesses or their employees may be fined up to £1,000.
Emma Cowlard, TV Licensing spokeswoman for London and the South East, said: “With services such as BBC iPlayer and 4oD streaming live TV it can be tempting to watch major televised occasions or sporting events sat at your desk during the working day.
“But employers and employees in Enfield need to be aware of their TV Licensing requirements if they are watching live TV in the workplace.”