By 2005, its UK network consisted of a 7,800 km fibre backbone with the potential to reach 8.4 million residential homes and around 610,000 businesses. In January of that year, NTL started rolling out video on demand. With content selected by NTL, this service covered genres including music videos, children's programming and adult entertainment, as an extension to the basic 'pay per view' services the company offered for film and sport content. The new service allowed customers to rewind, fast forward and pause content.