multiple branches used by each business/company being investigated, to which their findings in regards to concerns and/or failings on anything (such as hygiene, safety, and customer service for example), are revealed during the film, including a comparison between the branches visited and how they match up to findings made in the other branches. In some cases, company representatives are invited to discuss the consumer problems that were investigated by Watchdog, although a number frequently turn down the offer. However, many companies use the opportunity to voice their own opinions and thoughts on the subject of the investigation, some of whom also take advantage of the situation to offer full apologies and refunds to affected customers. From the start of 2000, company interviewees invited to take part in the programme are commonly given advice by media advisers before they are filmed. Presenters Notable investigations Fitted plugs In the late 1980s, Watchdog investigations showed that numerous accidents were caused when the electrical plugs on new electrical appliances were incorrectly wired. At the time, all new electrical goods were sold with bare wires and customers were expected to fit plugs themselves. These investigations led to a British law forcing all manufacturers selling electrical products in the UK to supply them with fitted plugs. Hoover free flights In 1992 and 1993, The Hoover Company introduced a "free flights" offer whereby any customer spending over £100 would receive two free flights to New York City, a cost of ~£600, at a time before the rise of budget airlines. Due to an overwhelming response, many people did not receive their tickets and were denied the opportunity to take their free flights. After hundreds of complaints to Watchdog, an investigation by reporter Simon Walton revealed that the company in charge of processing applications was trying to deny customers their free flights in an effort to stem the rising costs. This quickly became headline news and Hoover were forced to give all customers the flights, costing them an estimated £40 million and the jobs of all the board members. Auction World.tv Television sales channel Auction World.tv failed to deliver goods or offer refunds to over 27,000 customers in the early 2000s, and were fined £450,000 by the regulatory body OFCOM. Investigations by Watchdog forced refunds and the closure of the channel, and traced the owner to Cyprus, where he refused to answer questions. The Accident Group This company